Merge bk://kernel.bkbits.net/gregkh/linux/driver-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

drivers/base/bus.c

@@ -451,7 +451,11 @@ int bus_add_driver(struct device_driver * drv)
 
 	if (bus) {
 		pr_debug("bus %s: add driver %s\n",bus->name,drv->name);
-		kobject_set_name(&drv->kobj,drv->name);
+		error = kobject_set_name(&drv->kobj,drv->name);
+		if (error) {
+			put_bus(bus);
+			return error;
+		}
 		drv->kobj.kset = &bus->drivers;
 		if ((error = kobject_register(&drv->kobj))) {
 			put_bus(bus);
@@ -555,21 +559,39 @@ struct bus_type * find_bus(char * name)
  */
 int bus_register(struct bus_type * bus)
 {
-	kobject_set_name(&bus->subsys.kset.kobj,bus->name);
+	int retval;
+
+	retval = kobject_set_name(&bus->subsys.kset.kobj,bus->name);
+	if (retval)
+		goto out;
+
 	subsys_set_kset(bus,bus_subsys);
-	subsystem_register(&bus->subsys);
+	retval = subsystem_register(&bus->subsys);
+	if (retval) 
+		goto out;
 
 	kobject_set_name(&bus->devices.kobj, "devices");
 	bus->devices.subsys = &bus->subsys;
-	kset_register(&bus->devices);
+	retval = kset_register(&bus->devices);
+	if (retval)
+		goto bus_devices_fail;
 
 	kobject_set_name(&bus->drivers.kobj, "drivers");
 	bus->drivers.subsys = &bus->subsys;
 	bus->drivers.ktype = &ktype_driver;
-	kset_register(&bus->drivers);
+	retval = kset_register(&bus->drivers);
+	if (retval)
+		goto bus_drivers_fail;
 
 	pr_debug("bus type '%s' registered\n",bus->name);
 	return 0;
+
+bus_drivers_fail:
+	kset_unregister(&bus->devices);
+bus_devices_fail:
+	subsystem_unregister(&bus->subsys);
+out:
+	return retval;
 }
 
 

drivers/base/class.c

@@ -361,6 +361,8 @@ void class_device_unregister(struct class_device *class_dev)
 
 int class_device_rename(struct class_device *class_dev, char *new_name)
 {
+	int error = 0;
+
 	class_dev = class_device_get(class_dev);
 	if (!class_dev)
 		return -EINVAL;
@@ -370,11 +372,11 @@ int class_device_rename(struct class_device *class_dev, char *new_name)
 
 	strlcpy(class_dev->class_id, new_name, KOBJ_NAME_LEN);
 
-	kobject_rename(&class_dev->kobj, new_name);
+	error = kobject_rename(&class_dev->kobj, new_name);
 
 	class_device_put(class_dev);
 
-	return 0;
+	return error;
 }
 
 struct class_device * class_device_get(struct class_device *class_dev)

drivers/base/map.c

@@ -138,6 +138,13 @@ struct kobj_map *kobj_map_init(kobj_probe_t *base_probe,
 	struct kobj_map *p = kmalloc(sizeof(struct kobj_map), GFP_KERNEL);
 	struct probe *base = kmalloc(sizeof(struct probe), GFP_KERNEL);
 	int i;
+
+	if ((p == NULL) || (base == NULL)) {
+		kfree(p);
+		kfree(base);
+		return NULL;
+	}
+
 	memset(base, 0, sizeof(struct probe));
 	base->dev = 1;
 	base->range = ~0;

drivers/base/platform.c

@@ -57,8 +57,9 @@ void platform_device_unregister(struct platform_device * pdev)
  *	type of device, like "pci" or "floppy", and <instance> is the 
  *	enumerated instance of the device, like '0' or '42'.
  *	Driver IDs are simply "<name>". 
- *	So, extract the <name> from the device, and compare it against 
- *	the name of the driver. Return whether they match or not.
+ *	So, extract the <name> from the platform_device structure, 
+ *	and compare it against the name of the driver. Return whether 
+ *	they match or not.
  */
 
 static int platform_match(struct device * dev, struct device_driver * drv)

drivers/base/sys.c

@@ -180,8 +180,11 @@ int sysdev_register(struct sys_device * sysdev)
 
 	/* But make sure we point to the right type for sysfs translation */
 	sysdev->kobj.ktype = &ktype_sysdev;
-	kobject_set_name(&sysdev->kobj,"%s%d",
+	error = kobject_set_name(&sysdev->kobj,"%s%d",
 			 kobject_name(&cls->kset.kobj),sysdev->id);
+	if (error)
+		return error;
+
 	pr_debug("Registering sys device '%s'\n",kobject_name(&sysdev->kobj));
 
 	/* Register the object */

drivers/block/paride/pg.c

@@ -161,6 +161,7 @@ enum {D_PRT, D_PRO, D_UNI, D_MOD, D_SLV, D_DLY};
 #include <linux/slab.h>
 #include <linux/mtio.h>
 #include <linux/pg.h>
+#include <linux/device.h>
 
 #include <asm/uaccess.h>
 
@@ -240,6 +241,8 @@ static int pg_identify(struct pg *dev, int log);
 
 static char pg_scratch[512];	/* scratch block buffer */
 
+static struct class_simple *pg_class;
+
 /* kernel glue structures */
 
 static struct file_operations pg_fops = {
@@ -658,15 +661,19 @@ static ssize_t pg_read(struct file *filp, char *buf, size_t count, loff_t *ppos)
 
 static int __init pg_init(void)
 {
-	int unit;
+	int unit, err = 0;
 
-	if (disable)
-		return -1;
+	if (disable){
+		err = -1;
+		goto out;
+	}
 
 	pg_init_units();
 
-	if (pg_detect())
-		return -1;
+	if (pg_detect()) {
+		err = -1;
+		goto out;
+	}
 
 	if (register_chrdev(major, name, &pg_fops)) {
 		printk("pg_init: unable to get major number %d\n", major);
@@ -675,18 +682,37 @@ static int __init pg_init(void)
 			if (dev->present)
 				pi_release(dev->pi);
 		}
-		return -1;
+		err = -1;
+		goto out;
+	}
+	pg_class = class_simple_create(THIS_MODULE, "pg");
+	if (IS_ERR(pg_class)) {
+		err = PTR_ERR(pg_class);
+		goto out_chrdev;
 	}
 	devfs_mk_dir("pg");
 	for (unit = 0; unit < PG_UNITS; unit++) {
 		struct pg *dev = &devices[unit];
 		if (dev->present) {
-			devfs_mk_cdev(MKDEV(major, unit),
+			class_simple_device_add(pg_class, MKDEV(major, unit), 
+					NULL, "pg%u", unit);
+			err = devfs_mk_cdev(MKDEV(major, unit),
 				      S_IFCHR | S_IRUSR | S_IWUSR, "pg/%u",
 				      unit);
+			if (err) 
+				goto out_class;
 		}
 	}
-	return 0;
+	err = 0;
+	goto out;
+
+out_class:
+	class_simple_device_remove(MKDEV(major, unit));
+	class_simple_destroy(pg_class);
+out_chrdev:
+	unregister_chrdev(major, "pg");
+out:
+	return err;
 }
 
 static void __exit pg_exit(void)
@@ -695,10 +721,12 @@ static void __exit pg_exit(void)
 
 	for (unit = 0; unit < PG_UNITS; unit++) {
 		struct pg *dev = &devices[unit];
-		if (dev->present)
+		if (dev->present) {
+			class_simple_device_remove(MKDEV(major, unit));
 			devfs_remove("pg/%u", unit);
+		}
 	}
-
+	class_simple_destroy(pg_class);
 	devfs_remove("pg");
 	unregister_chrdev(major, name);
 

drivers/block/paride/pt.c

@@ -145,6 +145,7 @@ static int (*drives[4])[6] = {&drive0, &drive1, &drive2, &drive3};
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/mtio.h>
+#include <linux/device.h>
 
 #include <asm/uaccess.h>
 
@@ -260,6 +261,9 @@ static struct file_operations pt_fops = {
 	.release = pt_release,
 };
 
+/* sysfs class support */
+static struct class_simple *pt_class;
+
 static inline int status_reg(struct pi_adapter *pi)
 {
 	return pi_read_regr(pi, 1, 6);
@@ -959,33 +963,62 @@ static ssize_t pt_write(struct file *filp, const char *buf, size_t count, loff_t
 
 static int __init pt_init(void)
 {
-	int unit;
+	int unit, err = 0;
 
-	if (disable)
-		return -1;
+	if (disable) {
+		err = -1;
+		goto out;
+	}
 
-	if (pt_detect())
-		return -1;
+	if (pt_detect()) {
+		err = -1;
+		goto out;
+	}
 
 	if (register_chrdev(major, name, &pt_fops)) {
 		printk("pt_init: unable to get major number %d\n", major);
 		for (unit = 0; unit < PT_UNITS; unit++)
 			if (pt[unit].present)
 				pi_release(pt[unit].pi);
-		return -1;
+		err = -1;
+		goto out;
+	}
+	pt_class = class_simple_create(THIS_MODULE, "pt");
+	if (IS_ERR(pt_class)) {
+		err = PTR_ERR(pt_class);
+		goto out_chrdev;
 	}
 
 	devfs_mk_dir("pt");
 	for (unit = 0; unit < PT_UNITS; unit++)
 		if (pt[unit].present) {
-			devfs_mk_cdev(MKDEV(major, unit),
+			class_simple_device_add(pt_class, MKDEV(major, unit), 
+					NULL, "pt%d", unit);
+			err = devfs_mk_cdev(MKDEV(major, unit),
 				      S_IFCHR | S_IRUSR | S_IWUSR,
 				      "pt/%d", unit);
-			devfs_mk_cdev(MKDEV(major, unit + 128),
+			if (err) {
+				class_simple_device_remove(MKDEV(major, unit));
+				goto out_class;
+			}
+			class_simple_device_add(pt_class, MKDEV(major, unit + 128),
+					NULL, "pt%dn", unit);
+			err = devfs_mk_cdev(MKDEV(major, unit + 128),
 				      S_IFCHR | S_IRUSR | S_IWUSR,
 				      "pt/%dn", unit);
+			if (err) {
+				class_simple_device_remove(MKDEV(major, unit + 128));
+				goto out_class;
+			}
 		}
-	return 0;
+	goto out;
+
+out_class:
+	class_simple_destroy(pt_class);
+out_chrdev:
+	unregister_chrdev(major, "pt");
+out:
+	return err;
 }
 
 static void __exit pt_exit(void)
@@ -993,9 +1026,12 @@ static void __exit pt_exit(void)
 	int unit;
 	for (unit = 0; unit < PT_UNITS; unit++)
 		if (pt[unit].present) {
+			class_simple_device_remove(MKDEV(major, unit));
 			devfs_remove("pt/%d", unit);
+			class_simple_device_remove(MKDEV(major, unit + 128));
 			devfs_remove("pt/%dn", unit);
 		}
+	class_simple_destroy(pt_class);
 	devfs_remove("pt");
 	unregister_chrdev(major, name);
 	for (unit = 0; unit < PT_UNITS; unit++)

drivers/char/ip2main.c

@@ -99,6 +99,7 @@
 #include <linux/slab.h>
 #include <linux/major.h>
 #include <linux/wait.h>
+#include <linux/device.h>
 
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
@@ -301,6 +302,9 @@ static int iindx;
 static char rirqs[IP2_MAX_BOARDS];
 static int Valid_Irqs[] = { 3, 4, 5, 7, 10, 11, 12, 15, 0};
 
+/* for sysfs class support */
+static struct class_simple *ip2_class;
+
 // Some functions to keep track of what irq's we have
 
 static int __init
@@ -411,7 +415,9 @@ cleanup_module(void)
 			iiResetDelay( i2BoardPtrTable[i] );
 			/* free io addresses and Tibet */
 			release_region( ip2config.addr[i], 8 );
+			class_simple_device_remove(MKDEV(IP2_IPL_MAJOR, 4 * i)); 
 			devfs_remove("ip2/ipl%d", i);
+			class_simple_device_remove(MKDEV(IP2_IPL_MAJOR, 4 * i + 1));
 			devfs_remove("ip2/stat%d", i);
 		}
 		/* Disable and remove interrupt handler. */
@@ -420,6 +426,7 @@ cleanup_module(void)
 			clear_requested_irq( ip2config.irq[i]);
 		}
 	}
+	class_simple_destroy(ip2_class);
 	devfs_remove("ip2");
 	if ( ( err = tty_unregister_driver ( ip2_tty_driver ) ) ) {
 		printk(KERN_ERR "IP2: failed to unregister tty driver (%d)\n", err);
@@ -494,7 +501,7 @@ int
 ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize) 
 {
 	int i, j, box;
-	int err;
+	int err = 0;
 	int status = 0;
 	static int loaded;
 	i2eBordStrPtr pB = NULL;
@@ -683,7 +690,14 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize)
 	/* Register the IPL driver. */
 	if ( ( err = register_chrdev ( IP2_IPL_MAJOR, pcIpl, &ip2_ipl ) ) ) {
 		printk(KERN_ERR "IP2: failed to register IPL device (%d)\n", err );
-	} else
+	} else {
+		/* create the sysfs class */
+		ip2_class = class_simple_create(THIS_MODULE, "ip2");
+		if (IS_ERR(ip2_class)) {
+			err = PTR_ERR(ip2_class);
+			goto out_chrdev;	
+		}
+	}
 	/* Register the read_procmem thing */
 	if (!create_proc_info_entry("ip2mem",0,&proc_root,ip2_read_procmem)) {
 		printk(KERN_ERR "IP2: failed to register read_procmem\n");
@@ -700,13 +714,27 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize)
 			}
 
 			if ( NULL != ( pB = i2BoardPtrTable[i] ) ) {
-				devfs_mk_cdev(MKDEV(IP2_IPL_MAJOR, 4 * i),
+				class_simple_device_add(ip2_class, MKDEV(IP2_IPL_MAJOR, 
+						4 * i), NULL, "ipl%d", i);
+				err = devfs_mk_cdev(MKDEV(IP2_IPL_MAJOR, 4 * i),
 						S_IRUSR | S_IWUSR | S_IRGRP | S_IFCHR,
 						"ip2/ipl%d", i);
+				if (err) {
+					class_simple_device_remove(MKDEV(IP2_IPL_MAJOR, 
+						4 * i));
+					goto out_class;
+				}
 
-				devfs_mk_cdev(MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
+				class_simple_device_add(ip2_class, MKDEV(IP2_IPL_MAJOR, 
+						4 * i + 1), NULL, "stat%d", i);
+				err = devfs_mk_cdev(MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
 						S_IRUSR | S_IWUSR | S_IRGRP | S_IFCHR,
 						"ip2/stat%d", i);
+				if (err) {
+					class_simple_device_remove(MKDEV(IP2_IPL_MAJOR, 
+						4 * i + 1));
+					goto out_class;
+				}
 
 			    for ( box = 0; box < ABS_MAX_BOXES; ++box )
 			    {
@@ -759,8 +787,14 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize)
 		}
 	}
 	ip2trace (ITRC_NO_PORT, ITRC_INIT, ITRC_RETURN, 0 );
-
-	return 0;
+	goto out;
+
+out_class:
+	class_simple_destroy(ip2_class);
+out_chrdev:
+	unregister_chrdev(IP2_IPL_MAJOR, "ip2");
+out:
+	return err;
 }
 
 EXPORT_SYMBOL(ip2_loadmain);

drivers/char/ppdev.c

@@ -59,6 +59,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/device.h>
 #include <linux/devfs_fs_kernel.h>
 #include <linux/ioctl.h>
 #include <linux/parport.h>
@@ -739,6 +740,8 @@ static unsigned int pp_poll (struct file * file, poll_table * wait)
 	return mask;
 }
 
+static struct class_simple *ppdev_class;
+
 static struct file_operations pp_fops = {
 	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
@@ -750,23 +753,59 @@ static struct file_operations pp_fops = {
 	.release	= pp_release,
 };
 
+static void pp_attach(struct parport *port)
+{
+	class_simple_device_add(ppdev_class, MKDEV(PP_MAJOR, port->number),
+			NULL, "parport%d", port->number);
+}
+
+static void pp_detach(struct parport *port)
+{
+	class_simple_device_remove(MKDEV(PP_MAJOR, port->number));
+}
+
+static struct parport_driver pp_driver = {
+	.name		= CHRDEV,
+	.attach		= pp_attach,
+	.detach		= pp_detach,
+};
+
 static int __init ppdev_init (void)
 {
-	int i;
+	int i, err = 0;
 
 	if (register_chrdev (PP_MAJOR, CHRDEV, &pp_fops)) {
 		printk (KERN_WARNING CHRDEV ": unable to get major %d\n",
 			PP_MAJOR);
 		return -EIO;
 	}
+	ppdev_class = class_simple_create(THIS_MODULE, CHRDEV);
+	if (IS_ERR(ppdev_class)) {
+		err = PTR_ERR(ppdev_class);
+		goto out_chrdev;
+	}
 	devfs_mk_dir("parports");
 	for (i = 0; i < PARPORT_MAX; i++) {
 		devfs_mk_cdev(MKDEV(PP_MAJOR, i),
 				S_IFCHR | S_IRUGO | S_IWUGO, "parports/%d", i);
 	}
+	if (parport_register_driver(&pp_driver)) {
+		printk (KERN_WARNING CHRDEV ": unable to register with parport\n");
+		goto out_class;
+	}
 
 	printk (KERN_INFO PP_VERSION "\n");
-	return 0;
+	goto out;
+
+out_class:
+	for (i = 0; i < PARPORT_MAX; i++)
+		devfs_remove("parports/%d", i);
+	devfs_remove("parports");
+	class_simple_destroy(ppdev_class);
+out_chrdev:
+	unregister_chrdev(PP_MAJOR, CHRDEV);
+out:
+	return err;
 }
 
 static void __exit ppdev_cleanup (void)
@@ -775,7 +814,9 @@ static void __exit ppdev_cleanup (void)
 	/* Clean up all parport stuff */
 	for (i = 0; i < PARPORT_MAX; i++)
 		devfs_remove("parports/%d", i);
+	parport_unregister_driver(&pp_driver);
 	devfs_remove("parports");
+	class_simple_destroy(ppdev_class);
 	unregister_chrdev (PP_MAJOR, CHRDEV);
 }
 

drivers/char/tipar.c

@@ -58,6 +58,7 @@
 #include <asm/bitops.h>
 #include <linux/devfs_fs_kernel.h>	/* DevFs support */
 #include <linux/parport.h>	/* Our code depend on parport */
+#include <linux/device.h>
 
 /*
  * TI definitions
@@ -92,6 +93,8 @@ static int timeout = TIMAXTIME;	/* timeout in tenth of seconds     */
 static unsigned int tp_count;	/* tipar count */
 static unsigned long opened;	/* opened devices */
 
+static struct class_simple *tipar_class;
+
 /* --- macros for parport access -------------------------------------- */
 
 #define r_dtr(x)        (parport_read_data(table[(x)].dev->port))
@@ -424,18 +427,26 @@ tipar_setup(char *str)
 static int
 tipar_register(int nr, struct parport *port)
 {
+	int err = 0;
+
 	/* Register our module into parport */
 	table[nr].dev = parport_register_device(port, "tipar",
 						NULL, NULL, NULL, 0,
 						(void *) &table[nr]);
 
-	if (table[nr].dev == NULL)
-		return 1;
+	if (table[nr].dev == NULL) {
+		err = 1;
+		goto out;
+	}
 
+	class_simple_device_add(tipar_class, MKDEV(TIPAR_MAJOR, TIPAR_MINOR + nr),
+			NULL, "par%d", nr);
 	/* Use devfs, tree: /dev/ticables/par/[0..2] */
-	devfs_mk_cdev(MKDEV(TIPAR_MAJOR, TIPAR_MINOR + nr),
+	err = devfs_mk_cdev(MKDEV(TIPAR_MAJOR, TIPAR_MINOR + nr),
 			S_IFCHR | S_IRUGO | S_IWUGO,
 			"ticables/par/%d", nr);
+	if (err)
+		goto out_class;
 
 	/* Display informations */
 	printk(KERN_INFO "tipar%d: using %s (%s).\n", nr, port->name,
@@ -447,7 +458,14 @@ tipar_register(int nr, struct parport *port)
 	else
 		printk("tipar%d: link cable not found.\n", nr);
 
-	return 0;
+	err = 0;
+	goto out;
+
+out_class:
+	class_simple_device_remove(MKDEV(TIPAR_MAJOR, TIPAR_MINOR + nr));
+	class_simple_destroy(tipar_class);
+out:
+	return err;
 }
 
 static void
@@ -477,23 +495,38 @@ static struct parport_driver tipar_driver = {
 int __init
 tipar_init_module(void)
 {
+	int err = 0;
+
 	printk("tipar: parallel link cable driver, version %s\n",
 	       DRIVER_VERSION);
 
 	if (register_chrdev(TIPAR_MAJOR, "tipar", &tipar_fops)) {
 		printk("tipar: unable to get major %d\n", TIPAR_MAJOR);
-		return -EIO;
+		err = -EIO;
+		goto out;
 	}
 
 	/* Use devfs with tree: /dev/ticables/par/[0..2] */
 	devfs_mk_dir("ticables/par");
 
+	tipar_class = class_simple_create(THIS_MODULE, "ticables");
+	if (IS_ERR(tipar_class)) {
+		err = PTR_ERR(tipar_class);
+		goto out_chrdev;
+	}
 	if (parport_register_driver(&tipar_driver)) {
 		printk("tipar: unable to register with parport\n");
-		return -EIO;
+		err = -EIO;
+		goto out;
 	}
 
-	return 0;
+	err = 0;
+	goto out;
+
+out_chrdev:
+	unregister_chrdev(TIPAR_MAJOR, "tipar");
+out:
+	return err;	
 }
 
 void __exit
@@ -510,8 +543,10 @@ tipar_cleanup_module(void)
 		if (table[i].dev == NULL)
 			continue;
 		parport_unregister_device(table[i].dev);
+		class_simple_device_remove(MKDEV(TIPAR_MAJOR, i));
 		devfs_remove("ticables/par/%d", i);
 	}
+	class_simple_destroy(tipar_class);
 	devfs_remove("ticables/par");
 
 	printk("tipar: module unloaded !\n");

drivers/firmware/Kconfig

@@ -34,4 +34,12 @@ config EFI_VARS
 	  Subsequent efibootmgr releases may be found at:
 	  http://linux.dell.com/efibootmgr
 
+config SMBIOS
+	tristate "BIOS SMBIOS table access driver."
+	help
+	  Say Y or M here if you want to enable access to the SMBIOS table
+	  via driverfs. It exposes /sys/firmware/smbios/ subdirectory tree
+	  containing a binary dump of the SMBIOS table header as well as the SMBIOS
+	  table.
+
 endmenu

drivers/firmware/Makefile

@@ -3,3 +3,4 @@
 #
 obj-$(CONFIG_EDD)             	+= edd.o
 obj-$(CONFIG_EFI_VARS)		+= efivars.o
+obj-$(CONFIG_SMBIOS)            += smbios.o

drivers/firmware/smbios.c

+/*
+ * linux/drivers/firmware/smbios.c
+ *  Copyright (C) 2004 Dell Inc.
+ *  by Michael Brown <Michael_E_Brown@dell.com>
+ *  vim:noet:ts=8:sw=8:filetype=c:textwidth=80:
+ *
+ * BIOS SMBIOS Table access
+ * conformant to DMTF SMBIOS definition
+ *   at http://www.dmtf.org/standards/smbios
+ *
+ * This code takes information provided by SMBIOS tables
+ * and presents it in sysfs as:
+ *    /sys/firmware/smbios
+ *			|--> /table_entry_point
+ *			|--> /table
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2.0 as published by
+ * the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include "smbios.h"
+
+MODULE_AUTHOR("Michael Brown <Michael_E_Brown@Dell.com>");
+MODULE_DESCRIPTION("sysfs interface to SMBIOS information");
+MODULE_LICENSE("GPL");
+
+#define SMBIOS_VERSION "1.0 2004-04-19"
+
+struct smbios_device {
+	struct smbios_table_entry_point table_eps;
+	unsigned int smbios_table_real_length;
+};
+
+/* there shall be only one */
+static struct smbios_device the_smbios_device;
+
+#define to_smbios_device(obj) container_of(obj,struct smbios_device,kobj)
+
+/* don't currently have any "normal" attributes, so we don't need a way to
+ * show them. */
+static struct sysfs_ops smbios_attr_ops = { };
+
+static __init int
+checksum_eps(struct smbios_table_entry_point *table_eps)
+{
+	u8 *p = (u8 *)table_eps;
+	u8 checksum = 0;
+	int i=0;
+	for (i=0; i < table_eps->eps_length && i < sizeof(*table_eps); ++i) {
+		checksum += p[i];
+	}
+	return( checksum == 0 );
+}
+
+static __init int
+find_table_entry_point(struct smbios_device *sdev)
+{
+	struct smbios_table_entry_point *table_eps = &(sdev->table_eps);
+	u32 fp = 0xF0000;
+	while (fp < 0xFFFFF) {
+		isa_memcpy_fromio(table_eps, fp, sizeof(*table_eps));
+		if (memcmp(table_eps->anchor, "_SM_", 4)==0 &&
+					checksum_eps(table_eps)) {
+			return 0;
+		}
+		fp += 16;
+	}
+
+	printk(KERN_INFO "SMBIOS table entry point not found in "
+			"0xF0000 - 0xFFFFF\n");
+	return -ENODEV;
+}
+
+static __init int
+find_table_max_address(struct smbios_device *sdev)
+{
+	/* break out on one of three conditions:
+	 *   -- hit table_eps.table_length
+	 *   -- hit number of items that table claims we have
+	 *   -- hit structure type 127
+	 */
+
+	u8 *buf = ioremap(sdev->table_eps.table_address,
+			sdev->table_eps.table_length);
+	u8 *ptr = buf;
+	int count = 0, keep_going = 1;
+	int max_count = sdev->table_eps.table_num_structs;
+	int max_length = sdev->table_eps.table_length;
+	while(keep_going && ((ptr - buf) <= max_length) && count < max_count){
+		if( ptr[0] == 0x7F )   /* ptr[0] is type */
+			keep_going = 0;
+
+		ptr += ptr[1]; /* ptr[1] is length, skip structure */
+		/* skip strings at end of structure */
+		while((ptr-buf) < max_length && (ptr[0] || ptr[1]))
+			++ptr;
+
+		/* string area ends in double-null. skip it. */
+		ptr += 2;
+		++count;
+	}
+	sdev->smbios_table_real_length = (ptr - buf);
+	iounmap(buf);
+
+	if( count != max_count )
+		printk(KERN_INFO "Warning: SMBIOS table structure count"
+				" does not match count specified in the"
+				" table entry point.\n"
+				" Table entry point count: %d\n"
+				" Actual count: %d\n",
+				max_count, count );
+
+	if(keep_going != 0)
+		printk(KERN_INFO "Warning: SMBIOS table does not end with a"
+				" structure type 127. This may indicate a"
+				" truncated table.");
+
+	if(sdev->smbios_table_real_length != max_length)
+		printk(KERN_INFO "Warning: BIOS specified SMBIOS table length"
+				" does not match calculated length.\n"
+				" BIOS specified: %d\n"
+				" calculated length: %d\n",
+				max_length, sdev->smbios_table_real_length);
+
+	return sdev->smbios_table_real_length;
+}
+
+static ssize_t
+smbios_read_table_entry_point(struct kobject *kobj, char *buffer,
+				loff_t pos, size_t size)
+{
+	struct smbios_device *sdev = &the_smbios_device;
+	const char *p = (const char *)&(sdev->table_eps);
+	unsigned int count =
+		size > sizeof(sdev->table_eps) ?
+			sizeof(sdev->table_eps) : size;
+	memcpy( buffer, p, count );
+	return count;
+}
+
+static ssize_t
+smbios_read_table(struct kobject *kobj, char *buffer,
+				loff_t pos, size_t size)
+{
+	struct smbios_device *sdev = &the_smbios_device;
+	u8 *buf;
+	unsigned int count = sdev->smbios_table_real_length - pos;
+	int i = 0;
+	count = count < size ? count : size;
+
+	if (pos > sdev->smbios_table_real_length)
+		return 0;
+
+	buf = ioremap(sdev->table_eps.table_address, sdev->smbios_table_real_length);
+	if (buf == NULL)
+		return -ENXIO;
+
+	/* memcpy( buffer, buf+pos, count ); */
+	for (i = 0; i < count; ++i) {
+		buffer[i] = readb( buf+pos+i );
+	}
+
+	iounmap(buf);
+
+	return count;
+}
+
+static struct bin_attribute tep_attr = {
+	.attr = {.name = "table_entry_point", .owner = THIS_MODULE, .mode = 0444},
+	.size = sizeof(struct smbios_table_entry_point),
+	.read = smbios_read_table_entry_point,
+	/* not writeable */
+};
+
+static struct bin_attribute table_attr = {
+	.attr = { .name = "table", .owner = THIS_MODULE, .mode = 0444 },
+	/* size set later, we don't know it here. */
+	.read = smbios_read_table,
+	/* not writeable */
+};
+
+/* no default attributes yet. */
+static struct attribute * def_attrs[] = { NULL, };
+
+static struct kobj_type ktype_smbios = {
+	.sysfs_ops	= &smbios_attr_ops,
+	.default_attrs	= def_attrs,
+	/* statically allocated, no release method necessary */
+};
+
+static decl_subsys(smbios,&ktype_smbios,NULL);
+
+static void smbios_device_unregister(void)
+{
+	sysfs_remove_bin_file(&smbios_subsys.kset.kobj, &tep_attr );
+	sysfs_remove_bin_file(&smbios_subsys.kset.kobj, &table_attr );
+}
+
+static void __init smbios_device_register(void)
+{
+	sysfs_create_bin_file(&smbios_subsys.kset.kobj, &tep_attr );
+	sysfs_create_bin_file(&smbios_subsys.kset.kobj, &table_attr );
+}
+
+static int __init
+smbios_init(void)
+{
+	int rc=0;
+
+	printk(KERN_INFO "SMBIOS facility v%s\n", SMBIOS_VERSION );
+
+	rc = find_table_entry_point(&the_smbios_device);
+	if (rc)
+		return rc;
+
+	table_attr.size = find_table_max_address(&the_smbios_device);
+
+	rc = firmware_register(&smbios_subsys);
+	if (rc)
+		return rc;
+
+	smbios_device_register();
+
+	return rc;
+}
+
+static void __exit
+smbios_exit(void)
+{
+	smbios_device_unregister();
+	firmware_unregister(&smbios_subsys);
+}
+
+late_initcall(smbios_init);
+module_exit(smbios_exit);

drivers/firmware/smbios.h

+/*
+ * linux/drivers/firmware/smbios.c
+ *  Copyright (C) 2002, 2003, 2004 Dell Inc.
+ *  by Michael Brown <Michael_E_Brown@dell.com>
+ *  vim:noet:ts=8:sw=8:filetype=c:textwidth=80:
+ *
+ * BIOS SMBIOS Table access 
+ * conformant to DMTF SMBIOS definition
+ *   at http://www.dmtf.org/standards/smbios
+ *
+ * This code takes information provided by SMBIOS tables
+ * and presents it in sysfs.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License v2.0 as published by
+ * the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _LINUX_SMBIOS_H
+#define _LINUX_SMBIOS_H
+
+#include <linux/types.h>
+
+struct smbios_table_entry_point {
+	u8 anchor[4];
+	u8 checksum;
+	u8 eps_length;
+	u8 major_ver;
+	u8 minor_ver;
+	u16 max_struct_size;
+	u8 revision;
+	u8 formatted_area[5];
+	u8 dmi_anchor[5];
+	u8 intermediate_checksum;
+	u16 table_length;
+	u32 table_address;
+	u16 table_num_structs;
+	u8 smbios_bcd_revision;
+} __attribute__ ((packed));
+
+struct smbios_structure_header {
+	u8 type;
+	u8 length;
+	u16 handle;
+} __attribute__ ((packed));
+
+#endif				/* _LINUX_SMBIOS_H */

drivers/macintosh/adb.c

@@ -10,7 +10,7 @@
  *
  * To do:
  *
- * - /proc/adb to list the devices and infos
+ * - /sys/bus/adb to list the devices and infos
  * - more /dev/adb to allow userland to receive the
  *   flow of auto-polling datas from a given device.
  * - move bus probe to a kernel thread
@@ -23,7 +23,6 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/smp_lock.h>
@@ -36,6 +35,7 @@
 #include <linux/delay.h>
 #include <linux/spinlock.h>
 #include <linux/completion.h>
+#include <linux/device.h>
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
 #ifdef CONFIG_PPC
@@ -75,6 +75,8 @@ static struct adb_driver *adb_driver_list[] = {
 	NULL
 };
 
+static struct class_simple *adb_dev_class;
+
 struct adb_driver *adb_controller;
 struct notifier_block *adb_client_list = NULL;
 static int adb_got_sleep;
@@ -883,6 +885,7 @@ static ssize_t adb_write(struct file *file, const char __user *buf,
 }
 
 static struct file_operations adb_fops = {
+	.owner		= THIS_MODULE,
 	.llseek		= no_llseek,
 	.read		= adb_read,
 	.write		= adb_write,
@@ -893,9 +896,13 @@ static struct file_operations adb_fops = {
 static void
 adbdev_init(void)
 {
-	if (register_chrdev(ADB_MAJOR, "adb", &adb_fops))
+	if (register_chrdev(ADB_MAJOR, "adb", &adb_fops)) {
 		printk(KERN_ERR "adb: unable to get major %d\n", ADB_MAJOR);
-	else
-		devfs_mk_cdev(MKDEV(ADB_MAJOR, 0),
-				S_IFCHR | S_IRUSR | S_IWUSR, "adb");
+		return;
+	}
+	adb_dev_class = class_simple_create(THIS_MODULE, "adb");
+	if (IS_ERR(adb_dev_class)) {
+		return;
+	}
+	class_simple_device_add(adb_dev_class, MKDEV(ADB_MAJOR, 0), NULL, "adb");
 }

drivers/misc/Kconfig

@@ -6,7 +6,7 @@ menu "Misc devices"
 
 config IBM_ASM
 	tristate "Device driver for IBM RSA service processor"
-	depends on X86
+	depends on X86 && EXPERIMENTAL
 	default n
 	---help---
 	  This option enables device driver support for in-band access to the
@@ -20,6 +20,12 @@ config IBM_ASM
 	  this feature serial driver support (CONFIG_SERIAL_8250) must be
 	  enabled.
 	  
+	  WARNING: This software may not be supported or function
+	  correctly on your IBM server. Please consult the IBM ServerProven
+	  website http://www.pc.ibm/ww/eserver/xseries/serverproven for
+	  information on the specific driver level and support statement
+	  for your IBM server.
+
 
 	  If unsure, say N.
 

drivers/misc/ibmasm/module.c

@@ -126,6 +126,13 @@ static int __init ibmasm_init_one(struct pci_dev *pdev, const struct pci_device_
 
 	ibmasm_register_uart(sp);
 
+	dev_printk(KERN_DEBUG, &pdev->dev, "WARNING: This software may not be supported or function\n");
+	dev_printk(KERN_DEBUG, &pdev->dev, "correctly on your IBM server. Please consult the IBM\n");
+	dev_printk(KERN_DEBUG, &pdev->dev, "ServerProven website\n");
+	dev_printk(KERN_DEBUG, &pdev->dev, "http://www.pc.ibm.com/ww/eserver/xseries/serverproven\n");
+	dev_printk(KERN_DEBUG, &pdev->dev, "for information on the specific driver level and support\n");
+	dev_printk(KERN_DEBUG, &pdev->dev, "statement for your IBM server.\n");
+
 	return 0;
 
 error_send_message:

drivers/net/wan/cosa.c

@@ -93,6 +93,7 @@
 #include <linux/netdevice.h>
 #include <linux/spinlock.h>
 #include <linux/smp_lock.h>
+#include <linux/device.h>
 
 #undef COSA_SLOW_IO	/* for testing purposes only */
 #undef REALLY_SLOW_IO
@@ -233,6 +234,9 @@ static int dma[MAX_CARDS+1];
 /* IRQ can be safely autoprobed */
 static int irq[MAX_CARDS+1] = { -1, -1, -1, -1, -1, -1, 0, };
 
+/* for class stuff*/
+static struct class_simple *cosa_class;
+
 #ifdef MODULE
 MODULE_PARM(io, "1-" __MODULE_STRING(MAX_CARDS) "i");
 MODULE_PARM_DESC(io, "The I/O bases of the COSA or SRP cards");
@@ -359,7 +363,7 @@ static void debug_status_out(struct cosa_data *cosa, int status);
 
 static int __init cosa_init(void)
 {
-	int i;
+	int i, err = 0;
 
 	printk(KERN_INFO "cosa v1.08 (c) 1997-2000 Jan Kasprzak <kas@fi.muni.cz>\n");
 #ifdef CONFIG_SMP
@@ -369,12 +373,14 @@ static int __init cosa_init(void)
 		if (register_chrdev(cosa_major, "cosa", &cosa_fops)) {
 			printk(KERN_WARNING "cosa: unable to get major %d\n",
 				cosa_major);
-			return -EIO;
+			err = -EIO;
+			goto out;
 		}
 	} else {
 		if (!(cosa_major=register_chrdev(0, "cosa", &cosa_fops))) {
 			printk(KERN_WARNING "cosa: unable to register chardev\n");
-			return -EIO;
+			err = -EIO;
+			goto out;
 		}
 	}
 	for (i=0; i<MAX_CARDS; i++)
@@ -384,15 +390,33 @@ static int __init cosa_init(void)
 	if (!nr_cards) {
 		printk(KERN_WARNING "cosa: no devices found.\n");
 		unregister_chrdev(cosa_major, "cosa");
-		return -ENODEV;
+		err = -ENODEV;
+		goto out;
 	}
 	devfs_mk_dir("cosa");
+	cosa_class = class_simple_create(THIS_MODULE, "cosa");
+	if (IS_ERR(cosa_class)) {
+		err = PTR_ERR(cosa_class);
+		goto out_chrdev;
+	}
 	for (i=0; i<nr_cards; i++) {
-		devfs_mk_cdev(MKDEV(cosa_major, i),
+		class_simple_device_add(cosa_class, MKDEV(cosa_major, i),
+				NULL, "cosa%d", i);
+		err = devfs_mk_cdev(MKDEV(cosa_major, i),
 				S_IFCHR|S_IRUSR|S_IWUSR,
 				"cosa/%d", i);
+		if (err) {
+			class_simple_device_remove(MKDEV(cosa_major, i));
+			goto out_chrdev;		
+		}
 	}
-	return 0;
+	err = 0;
+	goto out;
+	
+out_chrdev:
+	unregister_chrdev(cosa_major, "cosa");
+out:
+	return err;
 }
 module_init(cosa_init);
 
@@ -402,8 +426,11 @@ static void __exit cosa_exit(void)
 	int i;
 	printk(KERN_INFO "Unloading the cosa module\n");
 
-	for (i=0; i<nr_cards; i++)
+	for (i=0; i<nr_cards; i++) {
+		class_simple_device_remove(MKDEV(cosa_major, i));
 		devfs_remove("cosa/%d", i);
+	}
+	class_simple_destroy(cosa_class);
 	devfs_remove("cosa");
 	for (cosa=cosa_cards; nr_cards--; cosa++) {
 		/* Clean up the per-channel data */

fs/sysfs/bin.c

@@ -94,7 +94,7 @@ static ssize_t write(struct file * file, const char __user * userbuf,
 
 static int open(struct inode * inode, struct file * file)
 {
-	struct kobject * kobj = kobject_get(file->f_dentry->d_parent->d_fsdata);
+	struct kobject *kobj = sysfs_get_kobject(file->f_dentry->d_parent);
 	struct bin_attribute * attr = file->f_dentry->d_fsdata;
 	int error = -EINVAL;
 

fs/sysfs/dir.c

@@ -154,24 +154,33 @@ void sysfs_remove_dir(struct kobject * kobj)
 	dput(dentry);
 }
 
-void sysfs_rename_dir(struct kobject * kobj, const char *new_name)
+int sysfs_rename_dir(struct kobject * kobj, const char *new_name)
 {
+	int error = 0;
 	struct dentry * new_dentry, * parent;
 
 	if (!strcmp(kobject_name(kobj), new_name))
-		return;
+		return -EINVAL;
 
 	if (!kobj->parent)
-		return;
+		return -EINVAL;
 
 	parent = kobj->parent->dentry;
 
 	down(&parent->d_inode->i_sem);
 
 	new_dentry = sysfs_get_dentry(parent, new_name);
-	d_move(kobj->dentry, new_dentry);
-	kobject_set_name(kobj,new_name);
+	if (!IS_ERR(new_dentry)) {
+  		if (!new_dentry->d_inode) {
+			error = kobject_set_name(kobj,new_name);
+			if (!error)
+				d_move(kobj->dentry, new_dentry);
+		}
+		dput(new_dentry);
+	}
 	up(&parent->d_inode->i_sem);	
+
+	return error;
 }
 
 EXPORT_SYMBOL(sysfs_create_dir);

fs/sysfs/file.c

@@ -238,7 +238,7 @@ sysfs_write_file(struct file *file, const char __user *buf, size_t count, loff_t
 
 static int check_perm(struct inode * inode, struct file * file)
 {
-	struct kobject * kobj = kobject_get(file->f_dentry->d_parent->d_fsdata);
+	struct kobject *kobj = sysfs_get_kobject(file->f_dentry->d_parent);
 	struct attribute * attr = file->f_dentry->d_fsdata;
 	struct sysfs_buffer * buffer;
 	struct sysfs_ops * ops = NULL;

fs/sysfs/sysfs.h

@@ -11,3 +11,16 @@ extern void sysfs_hash_and_remove(struct dentry * dir, const char * name);
 
 extern int sysfs_create_subdir(struct kobject *, const char *, struct dentry **);
 extern void sysfs_remove_subdir(struct dentry *);
+
+
+static inline struct kobject *sysfs_get_kobject(struct dentry *dentry)
+{
+	struct kobject * kobj = NULL;
+
+	spin_lock(&dentry->d_lock);
+	if (!d_unhashed(dentry))
+		kobj = kobject_get(dentry->d_fsdata);
+	spin_unlock(&dentry->d_lock);
+
+	return kobj;
+}

include/linux/device.h

@@ -400,7 +400,7 @@ extern void firmware_unregister(struct subsystem *);
 
 /* debugging and troubleshooting/diagnostic helpers. */
 #define dev_printk(level, dev, format, arg...)	\
-	printk(level "%s %s: " format , (dev)->driver->name , (dev)->bus_id , ## arg)
+	printk(level "%s %s: " format , (dev)->driver ? (dev)->driver->name : "" , (dev)->bus_id , ## arg)
 
 #ifdef DEBUG
 #define dev_dbg(dev, format, arg...)		\

include/linux/kobject.h

@@ -48,7 +48,7 @@ extern void kobject_cleanup(struct kobject *);
 extern int kobject_add(struct kobject *);
 extern void kobject_del(struct kobject *);
 
-extern void kobject_rename(struct kobject *, char *new_name);
+extern int kobject_rename(struct kobject *, char *new_name);
 
 extern int kobject_register(struct kobject *);
 extern void kobject_unregister(struct kobject *);

include/linux/module.h

@@ -16,6 +16,8 @@
 #include <linux/kmod.h>
 #include <linux/elf.h>
 #include <linux/stringify.h>
+#include <linux/kobject.h>
+#include <linux/moduleparam.h>
 #include <asm/local.h>
 
 #include <asm/module.h>
@@ -207,6 +209,23 @@ enum module_state
 	MODULE_STATE_GOING,
 };
 
+/* sysfs stuff */
+struct module_attribute
+{
+	struct attribute attr;
+	struct kernel_param *param;
+};
+
+struct module_kobject
+{
+	/* Everyone should have one of these. */
+	struct kobject kobj;
+
+	/* We always have refcnt, we may have others from module_param(). */
+	unsigned int num_attributes;
+	struct module_attribute attr[0];
+};
+
 struct module
 {
 	enum module_state state;
@@ -217,6 +236,9 @@ struct module
 	/* Unique handle for this module */
 	char name[MODULE_NAME_LEN];
 
+	/* Sysfs stuff. */
+	struct module_kobject *mkobj;
+
 	/* Exported symbols */
 	const struct kernel_symbol *syms;
 	unsigned int num_syms;
@@ -267,6 +289,9 @@ struct module
 
 	/* Destruction function. */
 	void (*exit)(void);
+
+	/* Fake kernel param for refcnt. */
+	struct kernel_param refcnt_param;
 #endif
 
 #ifdef CONFIG_KALLSYMS

include/linux/moduleparam.h

@@ -50,7 +50,7 @@ struct kparam_array
    not there, read bits mean it's readable, write bits mean it's
    writable. */
 #define __module_param_call(prefix, name, set, get, arg, perm)		\
-	static char __param_str_##name[] __initdata = prefix #name;	\
+	static char __param_str_##name[] = prefix #name;		\
 	static struct kernel_param const __param_##name			\
 	__attribute_used__						\
     __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \
@@ -71,7 +71,7 @@ struct kparam_array
 
 /* Actually copy string: maxlen param is usually sizeof(string). */
 #define module_param_string(name, string, len, perm)			\
-	static struct kparam_string __param_string_##name __initdata	\
+	static struct kparam_string __param_string_##name		\
 		= { len, string };					\
 	module_param_call(name, param_set_copystring, param_get_charp,	\
 		   &__param_string_##name, perm)

include/linux/sysfs.h

@@ -44,7 +44,7 @@ sysfs_create_dir(struct kobject *);
 extern void
 sysfs_remove_dir(struct kobject *);
 
-extern void
+extern int
 sysfs_rename_dir(struct kobject *, const char *new_name);
 
 extern int

kernel/module.c

@@ -379,6 +379,22 @@ static inline void percpu_modcopy(void *pcpudst, const void *src,
 }
 #endif /* CONFIG_SMP */
 
+static int add_attribute(struct module *mod, struct kernel_param *kp)
+{
+	struct module_attribute *a;
+	int retval;
+
+	a = &mod->mkobj->attr[mod->mkobj->num_attributes];
+	a->attr.name = (char *)kp->name;
+	a->attr.owner = mod;
+	a->attr.mode = kp->perm;
+	a->param = kp;
+	retval = sysfs_create_file(&mod->mkobj->kobj, &a->attr);
+	if (!retval)
+		mod->mkobj->num_attributes++;
+	return retval;
+}
+
 #ifdef CONFIG_MODULE_UNLOAD
 /* Init the unload section of the module. */
 static void module_unload_init(struct module *mod)
@@ -663,6 +679,23 @@ void symbol_put_addr(void *addr)
 }
 EXPORT_SYMBOL_GPL(symbol_put_addr);
 
+static int refcnt_get_fn(char *buffer, struct kernel_param *kp)
+{
+	struct module *mod = container_of(kp, struct module, refcnt_param);
+
+	/* sysfs holds one reference. */
+	return sprintf(buffer, "%u", module_refcount(mod)-1);
+}
+
+static inline int sysfs_unload_setup(struct module *mod)
+{
+	mod->refcnt_param.name = "refcnt";
+	mod->refcnt_param.perm = 0444;
+	mod->refcnt_param.get = refcnt_get_fn;
+
+	return add_attribute(mod, &mod->refcnt_param);
+}
+
 #else /* !CONFIG_MODULE_UNLOAD */
 static void print_unload_info(struct seq_file *m, struct module *mod)
 {
@@ -689,6 +722,10 @@ sys_delete_module(const char *name_user, unsigned int flags)
 	return -ENOSYS;
 }
 
+static inline int sysfs_unload_setup(struct module *mod)
+{
+	return 0;
+}
 #endif /* CONFIG_MODULE_UNLOAD */
 
 #ifdef CONFIG_OBSOLETE_MODPARM
@@ -944,6 +981,116 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
 	return ret;
 }
 
+#define to_module_attr(n) container_of(n, struct module_attribute, attr);
+
+static ssize_t module_attr_show(struct kobject *kobj,
+				struct attribute *attr,
+				char *buf)
+{
+	int count;
+	struct module_attribute *attribute = to_module_attr(attr);
+
+	if (!attribute->param->get)
+		return -EPERM;
+
+	count = attribute->param->get(buf, attribute->param);
+	if (count > 0) {
+		strcat(buf, "\n");
+		++count;
+	}
+	return count;
+}
+
+/* sysfs always hands a nul-terminated string in buf.  We rely on that. */
+static ssize_t module_attr_store(struct kobject *kobj,
+				 struct attribute *attr,
+				 const char *buf, size_t len)
+{
+	int err;
+	struct module_attribute *attribute = to_module_attr(attr);
+
+	if (!attribute->param->set)
+		return -EPERM;
+
+	err = attribute->param->set(buf, attribute->param);
+	if (!err)
+		return len;
+	return err;
+}
+
+static struct sysfs_ops module_sysfs_ops = {
+	.show = module_attr_show,
+	.store = module_attr_store,
+};
+
+static void module_kobj_release(struct kobject *kobj)
+{
+	kfree(container_of(kobj, struct module_kobject, kobj));
+}
+
+static struct kobj_type module_ktype = {
+	.sysfs_ops =	&module_sysfs_ops,
+	.release =	&module_kobj_release,
+};
+static decl_subsys(module, &module_ktype, NULL);
+
+static int mod_sysfs_setup(struct module *mod,
+			   struct kernel_param *kparam,
+			   unsigned int num_params)
+{
+	unsigned int i;
+	int err;
+
+	/* We overallocate: not every param is in sysfs, and maybe no refcnt */
+	mod->mkobj = kmalloc(sizeof(*mod->mkobj)
+			     + sizeof(mod->mkobj->attr[0]) * (num_params+1),
+			     GFP_KERNEL);
+	if (!mod->mkobj)
+		return -ENOMEM;
+
+	memset(&mod->mkobj->kobj, 0, sizeof(mod->mkobj->kobj));
+	err = kobject_set_name(&mod->mkobj->kobj, mod->name);
+	if (err)
+		goto out;
+	kobj_set_kset_s(mod->mkobj, module_subsys);
+	err = kobject_register(&mod->mkobj->kobj);
+	if (err)
+		goto out;
+
+	mod->mkobj->num_attributes = 0;
+
+	for (i = 0; i < num_params; i++) {
+		if (kparam[i].perm) {
+			err = add_attribute(mod, &kparam[i]);
+			if (err)
+				goto out_unreg;
+		}
+	}
+	err = sysfs_unload_setup(mod);
+	if (err)
+		goto out_unreg;
+	return 0;
+
+out_unreg:
+	for (i = 0; i < mod->mkobj->num_attributes; i++)
+		sysfs_remove_file(&mod->mkobj->kobj,&mod->mkobj->attr[i].attr);
+	/* Calls module_kobj_release */
+	kobject_unregister(&mod->mkobj->kobj);
+	return err;
+out:
+	kfree(mod->mkobj);
+	return err;
+}
+
+static void mod_kobject_remove(struct module *mod)
+{
+	unsigned int i;
+	for (i = 0; i < mod->mkobj->num_attributes; i++)
+		sysfs_remove_file(&mod->mkobj->kobj,&mod->mkobj->attr[i].attr);
+	/* Calls module_kobj_release */
+	kobject_unregister(&mod->mkobj->kobj);
+}
+
 /* Free a module, remove from lists, etc (must hold module mutex). */
 static void free_module(struct module *mod)
 {
@@ -952,6 +1099,8 @@ static void free_module(struct module *mod)
 	list_del(&mod->list);
 	spin_unlock_irq(&modlist_lock);
 
+	mod_kobject_remove(mod);
+
 	/* Arch-specific cleanup. */
 	module_arch_cleanup(mod);
 
@@ -1556,6 +1705,11 @@ static struct module *load_module(void __user *umod,
 				 / sizeof(struct kernel_param),
 				 NULL);
 	}
+	err = mod_sysfs_setup(mod, 
+			      (struct kernel_param *)
+			      sechdrs[setupindex].sh_addr,
+			      sechdrs[setupindex].sh_size
+			      / sizeof(struct kernel_param));
 	if (err < 0)
 		goto arch_cleanup;
 
@@ -1891,3 +2045,9 @@ struct module *module_text_address(unsigned long addr)
 void struct_module(struct module *mod) { return; }
 EXPORT_SYMBOL(struct_module);
 #endif
+
+static int __init modules_init(void)
+{
+	return subsystem_register(&module_subsys);
+}
+__initcall(modules_init);

kernel/params.c

@@ -161,7 +161,7 @@ int parse_args(const char *name,
 									\
 		if (!val) return -EINVAL;				\
 		l = strtolfn(val, &endp, 0);				\
-		if (endp == val || *endp || ((type)l != l))		\
+		if (endp == val || ((type)l != l))			\
 			return -EINVAL;					\
 		*((type *)kp->arg) = l;					\
 		return 0;						\

lib/kobject.c

@@ -385,13 +385,17 @@ EXPORT_SYMBOL(kobject_set_name);
  *	@new_name: object's new name
  */
 
-void kobject_rename(struct kobject * kobj, char *new_name)
+int kobject_rename(struct kobject * kobj, char *new_name)
 {
+	int error = 0;
+
 	kobj = kobject_get(kobj);
 	if (!kobj)
-		return;
-	sysfs_rename_dir(kobj, new_name);
+		return -EINVAL;
+	error = sysfs_rename_dir(kobj, new_name);
 	kobject_put(kobj);
+
+	return error;
 }
 
 /**

net/core/dev.c

@@ -792,6 +792,8 @@ int dev_alloc_name(struct net_device *dev, const char *name)
  */
 int dev_change_name(struct net_device *dev, char *newname)
 {
+	int err = 0;
+
 	ASSERT_RTNL();
 
 	if (dev->flags & IFF_UP)
@@ -801,7 +803,7 @@ int dev_change_name(struct net_device *dev, char *newname)
 		return -EINVAL;
 
 	if (strchr(newname, '%')) {
-		int err = dev_alloc_name(dev, newname);
+		err = dev_alloc_name(dev, newname);
 		if (err < 0)
 			return err;
 		strcpy(newname, dev->name);
@@ -811,12 +813,14 @@ int dev_change_name(struct net_device *dev, char *newname)
 	else
 		strlcpy(dev->name, newname, IFNAMSIZ);
 
-	hlist_del(&dev->name_hlist);
-	hlist_add_head(&dev->name_hlist, dev_name_hash(dev->name));
+	err = class_device_rename(&dev->class_dev, dev->name);
+	if (!err) {
+		hlist_del(&dev->name_hlist);
+		hlist_add_head(&dev->name_hlist, dev_name_hash(dev->name));
+		notifier_call_chain(&netdev_chain, NETDEV_CHANGENAME, dev);
+	}
 
-	class_device_rename(&dev->class_dev, dev->name);
-	notifier_call_chain(&netdev_chain, NETDEV_CHANGENAME, dev);
-	return 0;
+	return err;
 }
 
 /**