Merge bk://bk.linux1394.org/ieee1394-2.6

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

arch/i386/kernel/nmi.c

@@ -458,6 +458,13 @@ void nmi_watchdog_tick (struct pt_regs * regs)
 			wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0, 0);
 			apic_write(APIC_LVTPC, APIC_DM_NMI);
 		}
+		else if (nmi_perfctr_msr == MSR_P6_PERFCTR0) {
+			/* Only P6 based Pentium M need to re-unmask
+			 * the apic vector but it doesn't hurt
+			 * other P6 variant */
+			apic_write(APIC_LVTPC,
+				   apic_read(APIC_LVTPC) & ~APIC_LVT_MASKED);
+		}
 		wrmsr(nmi_perfctr_msr, -(cpu_khz/nmi_hz*1000), -1);
 	}
 }

arch/ppc64/kernel/entry.S

@@ -487,7 +487,7 @@ _GLOBAL(enter_rtas)
 	mflr	r0
 	std	r0,16(r1)
         stdu	r1,-RTAS_FRAME_SIZE(r1)	/* Save SP and create stack space. */
-
+	
 	/* Because RTAS is running in 32b mode, it clobbers the high order half
 	 * of all registers that it saves.  We therefore save those registers
 	 * RTAS might touch to the stack.  (r0, r3-r13 are caller saved)
@@ -512,12 +512,25 @@ _GLOBAL(enter_rtas)
 	mfsrr1	r10
 	std	r10,_SRR1(r1)
 
+	/* There is no way it is acceptable to get here with interrupts enabled,
+	 * check it with the asm equivalent of WARN_ON
+	 */
+	mfmsr	r6
+	andi.	r0,r6,MSR_EE
+1:	tdnei	r0,0
+.section __bug_table,"a"
+	.llong	1b,__LINE__ + 0x1000000, 1f, 2f
+.previous
+.section .rodata,"a"
+1:	.asciz	__FILE__
+2:	.asciz "enter_rtas"
+.previous
+	
 	/* Unfortunately, the stack pointer and the MSR are also clobbered,
 	 * so they are saved in the PACA which allows us to restore
 	 * our original state after RTAS returns.
          */
 	std	r1,PACAR1(r13)
-	mfmsr	r6
         std	r6,PACASAVEDMSR(r13)
 
 	/* Setup our real return addr */	

arch/ppc64/kernel/head.S

@@ -93,8 +93,13 @@
 _stext:
 #ifdef CONFIG_PPC_PSERIES
 _STATIC(__start)
+	/* NOP this out unconditionally */
+BEGIN_FTR_SECTION
 	b .__start_initialization_pSeries
+END_FTR_SECTION(0, 1)
 #endif
+	/* Catch branch to 0 in real mode */
+	trap
 #ifdef CONFIG_PPC_ISERIES
 	/*
 	 * At offset 0x20, there is a pointer to iSeries LPAR data.

arch/ppc64/kernel/prom.c

@@ -1926,6 +1926,11 @@ finish_node(struct device_node *np, unsigned long mem_start,
 	np->name = get_property(np, "name", 0);
 	np->type = get_property(np, "device_type", 0);
 
+	if (!np->name)
+		np->name = "<NULL>";
+	if (!np->type)
+		np->type = "<NULL>";
+
 	/* get the device addresses and interrupts */
 	if (ifunc != NULL)
 		mem_start = ifunc(np, mem_start, naddrc, nsizec);

arch/ppc64/kernel/rtas.c

@@ -68,15 +68,20 @@ char rtas_data_buf[RTAS_DATA_BUF_SIZE]__page_aligned;
 void
 call_rtas_display_status(char c)
 {
-	struct rtas_args *rtas = &(get_paca()->xRtas);
+	struct rtas_args *args = &(get_paca()->xRtas);
+	unsigned long s;
+
+	spin_lock_irqsave(&rtas.lock, s);
 
-	rtas->token = 10;
-	rtas->nargs = 1;
-	rtas->nret  = 1;
-	rtas->rets  = (rtas_arg_t *)&(rtas->args[1]);
-	rtas->args[0] = (int)c;
+	args->token = 10;
+	args->nargs = 1;
+	args->nret  = 1;
+	args->rets  = (rtas_arg_t *)&(args->args[1]);
+	args->args[0] = (int)c;
 
-	enter_rtas((void *)__pa((unsigned long)rtas));	
+	enter_rtas((void *)__pa((unsigned long)args));	
+
+	spin_unlock_irqrestore(&rtas.lock, s);
 }
 
 int
@@ -91,8 +96,9 @@ rtas_token(const char *service)
 	return tokp ? *tokp : RTAS_UNKNOWN_SERVICE;
 }
 
-void
-log_rtas_error(struct rtas_args	*rtas_args)
+
+static int
+__log_rtas_error(struct rtas_args *rtas_args)
 {
 	struct rtas_args err_args, temp_args;
 
@@ -111,13 +117,24 @@ log_rtas_error(struct rtas_args	*rtas_args)
 	PPCDBG(PPCDBG_RTAS, "\tentering rtas with 0x%lx\n",
 	       (void *)__pa((unsigned long)&err_args));
 	enter_rtas((void *)__pa((unsigned long)&get_paca()->xRtas));
-	PPCDBG(PPCDBG_RTAS, "\treturned from rtas ...\n");
-
+	PPCDBG(PPCDBG_RTAS, "\treturned from rtas ...\n");	
 
 	err_args = get_paca()->xRtas;
 	get_paca()->xRtas = temp_args;
 
-	if (err_args.rets[0] == 0)
+	return err_args.rets[0];
+}
+
+void
+log_rtas_error(struct rtas_args	*rtas_args)
+{
+	unsigned long s;
+	int rc;
+
+	spin_lock_irqsave(&rtas.lock, s);
+	rc = __log_rtas_error(rtas_args);
+	spin_unlock_irqrestore(&rtas.lock, s);
+	if (rc == 0)
 		log_error(rtas_err_buf, ERR_TYPE_RTAS_LOG, 0);
 }
 
@@ -126,9 +143,10 @@ rtas_call(int token, int nargs, int nret,
 	  unsigned long *outputs, ...)
 {
 	va_list list;
-	int i;
+	int i, logit = 0;
 	unsigned long s;
 	struct rtas_args *rtas_args = &(get_paca()->xRtas);
+	long ret;
 
 	PPCDBG(PPCDBG_RTAS, "Entering rtas_call\n");
 	PPCDBG(PPCDBG_RTAS, "\ttoken    = 0x%x\n", token);
@@ -138,6 +156,9 @@ rtas_call(int token, int nargs, int nret,
 	if (token == RTAS_UNKNOWN_SERVICE)
 		return -1;
 
+	/* Gotta do something different here, use global lock for now... */
+	spin_lock_irqsave(&rtas.lock, s);
+
 	rtas_args->token = token;
 	rtas_args->nargs = nargs;
 	rtas_args->nret  = nret;
@@ -150,26 +171,16 @@ rtas_call(int token, int nargs, int nret,
 	va_end(list);
 
 	for (i = 0; i < nret; ++i)
-	  rtas_args->rets[i] = 0;
+		rtas_args->rets[i] = 0;
 
-#if 0   /* Gotta do something different here, use global lock for now... */
-	spin_lock_irqsave(&rtas_args->lock, s);
-#else
-	spin_lock_irqsave(&rtas.lock, s);
-#endif
 	PPCDBG(PPCDBG_RTAS, "\tentering rtas with 0x%lx\n",
 		(void *)__pa((unsigned long)rtas_args));
 	enter_rtas((void *)__pa((unsigned long)rtas_args));
 	PPCDBG(PPCDBG_RTAS, "\treturned from rtas ...\n");
 
 	if (rtas_args->rets[0] == -1)
-		log_rtas_error(rtas_args);
+		logit = (__log_rtas_error(rtas_args) == 0);
 
-#if 0   /* Gotta do something different here, use global lock for now... */
-	spin_unlock_irqrestore(&rtas_args->lock, s);
-#else
-	spin_unlock_irqrestore(&rtas.lock, s);
-#endif
 	ifppcdebug(PPCDBG_RTAS) {
 		for(i=0; i < nret ;i++)
 			udbg_printf("\tnret[%d] = 0x%lx\n", i, (ulong)rtas_args->rets[i]);
@@ -178,7 +189,15 @@ rtas_call(int token, int nargs, int nret,
 	if (nret > 1 && outputs != NULL)
 		for (i = 0; i < nret-1; ++i)
 			outputs[i] = rtas_args->rets[i+1];
-	return (ulong)((nret > 0) ? rtas_args->rets[0] : 0);
+	ret = (ulong)((nret > 0) ? rtas_args->rets[0] : 0);
+
+	/* Gotta do something different here, use global lock for now... */
+	spin_unlock_irqrestore(&rtas.lock, s);
+
+	if (logit)
+		log_error(rtas_err_buf, ERR_TYPE_RTAS_LOG, 0);
+
+	return ret;
 }
 
 /* Given an RTAS status code of 990n compute the hinted delay of 10^n
@@ -464,12 +483,12 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
 	enter_rtas((void *)__pa((unsigned long)&get_paca()->xRtas));
 	args = get_paca()->xRtas;
 
+	spin_unlock_irqrestore(&rtas.lock, flags);
+
 	args.rets  = (rtas_arg_t *)&(args.args[nargs]);
 	if (args.rets[0] == -1)
 		log_rtas_error(&args);
 
-	spin_unlock_irqrestore(&rtas.lock, flags);
-
 	/* Copy out args. */
 	if (copy_to_user(uargs->args + nargs,
 			 args.args + nargs,
@@ -485,7 +504,9 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
 void rtas_stop_self(void)
 {
 	struct rtas_args *rtas_args = &(get_paca()->xRtas);
+	unsigned long s;
 
+	spin_lock_irqsave(&rtas.lock, s);
 	rtas_args->token = rtas_token("stop-self");
 	BUG_ON(rtas_args->token == RTAS_UNKNOWN_SERVICE);
 	rtas_args->nargs = 0;
@@ -495,6 +516,8 @@ void rtas_stop_self(void)
 	printk("%u %u Ready to die...\n",
 	       smp_processor_id(), hard_smp_processor_id());
 	enter_rtas((void *)__pa(rtas_args));
+	spin_unlock_irqrestore(&rtas.lock, s);
+
 	panic("Alas, I survived.\n");
 }
 #endif /* CONFIG_HOTPLUG_CPU */

drivers/base/Kconfig

@@ -9,14 +9,14 @@ config FW_LOADER
 	  the kernel tree does.
 
 config DEBUG_DRIVER
-        bool "Driver Core verbose debug messages"
-        depends on DEBUG_KERNEL
-        help
-          Say Y here if you want the Driver core to produce a bunch of
-          debug messages to the system log. Select this if you are having a
-          problem with the driver core and want to see more of what is
-          going on.
+	 bool "Driver Core verbose debug messages"
+	depends on DEBUG_KERNEL
+	help
+	  Say Y here if you want the Driver core to produce a bunch of
+	  debug messages to the system log. Select this if you are having a
+	  problem with the driver core and want to see more of what is
+	  going on.
 
-          If you are unsure about this, say N here.
+	  If you are unsure about this, say N here.
 
 endmenu

drivers/base/class.c

@@ -155,8 +155,7 @@ static int class_device_dev_link(struct class_device * class_dev)
 
 static void class_device_dev_unlink(struct class_device * class_dev)
 {
-	if (class_dev->dev)
-		sysfs_remove_link(&class_dev->kobj, "device");
+	sysfs_remove_link(&class_dev->kobj, "device");
 }
 
 static int class_device_driver_link(struct class_device * class_dev)
@@ -169,8 +168,7 @@ static int class_device_driver_link(struct class_device * class_dev)
 
 static void class_device_driver_unlink(struct class_device * class_dev)
 {
-	if ((class_dev->dev) && (class_dev->dev->driver))
-		sysfs_remove_link(&class_dev->kobj, "driver");
+	sysfs_remove_link(&class_dev->kobj, "driver");
 }
 
 

drivers/char/dsp56k.c

@@ -35,6 +35,7 @@
 #include <linux/init.h>
 #include <linux/devfs_fs_kernel.h>
 #include <linux/smp_lock.h>
+#include <linux/device.h>
 
 #include <asm/atarihw.h>
 #include <asm/traps.h>
@@ -149,6 +150,8 @@ static struct dsp56k_device {
 	int tx_wsize, rx_wsize;
 } dsp56k;
 
+static struct class_simple *dsp56k_class;
+
 static int dsp56k_reset(void)
 {
 	u_char status;
@@ -502,6 +505,8 @@ static char banner[] __initdata = KERN_INFO "DSP56k driver installed\n";
 
 static int __init dsp56k_init_driver(void)
 {
+	int err = 0;
+
 	if(!MACH_IS_ATARI || !ATARIHW_PRESENT(DSP56K)) {
 		printk("DSP56k driver: Hardware not present\n");
 		return -ENODEV;
@@ -511,17 +516,35 @@ static int __init dsp56k_init_driver(void)
 		printk("DSP56k driver: Unable to register driver\n");
 		return -ENODEV;
 	}
+	dsp56k_class = class_simple_create(THIS_MODULE, "dsp56k");
+	if (IS_ERR(dsp56k_class)) {
+		err = PTR_ERR(dsp56k_class);
+		goto out_chrdev;
+	}
+	class_simple_device_add(dsp56k_class, MKDEV(DSP56K_MAJOR, 0), NULL, "dsp56k");
 
-	devfs_mk_cdev(MKDEV(DSP56K_MAJOR, 0),
+	err = devfs_mk_cdev(MKDEV(DSP56K_MAJOR, 0),
 		      S_IFCHR | S_IRUSR | S_IWUSR, "dsp56k");
+	if(err)
+		goto out_class;
 
 	printk(banner);
-	return 0;
+	goto out;
+
+out_class:
+	class_simple_device_remove(MKDEV(DSP56K_MAJOR, 0));
+	class_simple_destroy(dsp56k_class);
+out_chrdev:
+	unregister_chrdev(DSP56K_MAJOR, "dsp56k");
+out:
+	return err;
 }
 module_init(dsp56k_init_driver);
 
 static void __exit dsp56k_cleanup_driver(void)
 {
+	class_simple_device_remove(MKDEV(DSP56K_MAJOR, 0));
+	class_simple_destroy(dsp56k_class);
 	unregister_chrdev(DSP56K_MAJOR, "dsp56k");
 	devfs_remove("dsp56k");
 }

drivers/char/ftape/zftape/zftape-init.c

@@ -38,6 +38,7 @@
 
 #include <linux/zftape.h>
 #include <linux/init.h>
+#include <linux/device.h>
 
 #include "../zftape/zftape-init.h"
 #include "../zftape/zftape-read.h"
@@ -103,6 +104,8 @@ static struct file_operations zft_cdev =
 	.release	= zft_close,
 };
 
+static struct class_simple *zft_class;
+
 /*      Open floppy tape device
  */
 static int zft_open(struct inode *ino, struct file *filep)
@@ -341,22 +344,29 @@ KERN_INFO
 	      "installing zftape VFS interface for ftape driver ...");
 	TRACE_CATCH(register_chrdev(QIC117_TAPE_MAJOR, "zft", &zft_cdev),);
 
+	zft_class = class_simple_create(THIS_MODULE, "zft");
 	for (i = 0; i < 4; i++) {
+		class_simple_device_add(zft_class, MKDEV(QIC117_TAPE_MAJOR, i), NULL, "qft%i", i);
 		devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i),
 				S_IFCHR | S_IRUSR | S_IWUSR,
 				"qft%i", i);
+		class_simple_device_add(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 4), NULL, "nqft%i", i);
 		devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 4),
 				S_IFCHR | S_IRUSR | S_IWUSR,
 				"nqft%i", i);
+		class_simple_device_add(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 16), NULL, "zqft%i", i);
 		devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 16),
 				S_IFCHR | S_IRUSR | S_IWUSR,
 				"zqft%i", i);
+		class_simple_device_add(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 20), NULL, "nzqft%i", i);
 		devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 20),
 				S_IFCHR | S_IRUSR | S_IWUSR,
 				"nzqft%i", i);
+		class_simple_device_add(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 32), NULL, "rawqft%i", i);
 		devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 32),
 				S_IFCHR | S_IRUSR | S_IWUSR,
 				"rawqft%i", i);
+		class_simple_device_add(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 36), NULL, "nrawrawqft%i", i);
 		devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 36),
 				S_IFCHR | S_IRUSR | S_IWUSR,
 				"nrawqft%i", i);
@@ -386,12 +396,19 @@ static void zft_exit(void)
 	}
         for (i = 0; i < 4; i++) {
 		devfs_remove("qft%i", i);
+		class_simple_device_remove(MKDEV(QIC117_TAPE_MAJOR, i));
 		devfs_remove("nqft%i", i);
+		class_simple_device_remove(MKDEV(QIC117_TAPE_MAJOR, i + 4));
 		devfs_remove("zqft%i", i);
+		class_simple_device_remove(MKDEV(QIC117_TAPE_MAJOR, i + 16));
 		devfs_remove("nzqft%i", i);
+		class_simple_device_remove(MKDEV(QIC117_TAPE_MAJOR, i + 20));
 		devfs_remove("rawqft%i", i);
+		class_simple_device_remove(MKDEV(QIC117_TAPE_MAJOR, i + 32));
 		devfs_remove("nrawqft%i", i);
+		class_simple_device_remove(MKDEV(QIC117_TAPE_MAJOR, i + 36));
 	}
+	class_simple_destroy(zft_class);
 	zft_uninit_mem(); /* release remaining memory, if any */
         printk(KERN_INFO "zftape successfully unloaded.\n");
 	TRACE_EXIT;

drivers/char/istallion.c

@@ -40,6 +40,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/devfs_fs_kernel.h>
+#include <linux/device.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
@@ -795,6 +796,8 @@ static int	stli_timeron;
 
 /*****************************************************************************/
 
+static struct class_simple *istallion_class;
+
 #ifdef MODULE
 
 /*
@@ -853,9 +856,12 @@ static void __exit istallion_module_exit(void)
 		return;
 	}
 	put_tty_driver(stli_serial);
-	for (i = 0; i < 4; i++)
+	for (i = 0; i < 4; i++) {
 		devfs_remove("staliomem/%d", i);
+		class_simple_device_remove(MKDEV(STL_SIOMEMMAJOR, i));
+	}
 	devfs_remove("staliomem");
+	class_simple_destroy(istallion_class);
 	if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
 		printk("STALLION: failed to un-register serial memory device, "
 			"errno=%d\n", -i);
@@ -5310,10 +5316,13 @@ int __init stli_init(void)
 				"device\n");
 
 	devfs_mk_dir("staliomem");
+	istallion_class = class_simple_create(THIS_MODULE, "staliomem");
 	for (i = 0; i < 4; i++) {
 		devfs_mk_cdev(MKDEV(STL_SIOMEMMAJOR, i),
 			       S_IFCHR | S_IRUSR | S_IWUSR,
 			       "staliomem/%d", i);
+		class_simple_device_add(istallion_class, MKDEV(STL_SIOMEMMAJOR, i), 
+				NULL, "staliomem%d", i);
 	}
 
 /*

drivers/char/stallion.c

@@ -41,6 +41,7 @@
 #include <linux/init.h>
 #include <linux/smp_lock.h>
 #include <linux/devfs_fs_kernel.h>
+#include <linux/device.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
@@ -732,6 +733,8 @@ static struct file_operations	stl_fsiomem = {
 
 /*****************************************************************************/
 
+static struct class_simple *stallion_class;
+
 #ifdef MODULE
 
 /*
@@ -788,12 +791,15 @@ static void __exit stallion_module_exit(void)
 		restore_flags(flags);
 		return;
 	}
-	for (i = 0; i < 4; i++)
+	for (i = 0; i < 4; i++) {
 		devfs_remove("staliomem/%d", i);
+		class_simple_device_remove(MKDEV(STL_SIOMEMMAJOR, i));
+	}
 	devfs_remove("staliomem");
 	if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
 		printk("STALLION: failed to un-register serial memory device, "
 			"errno=%d\n", -i);
+	class_simple_destroy(stallion_class);
 
 	if (stl_tmpwritebuf != (char *) NULL)
 		kfree(stl_tmpwritebuf);
@@ -3181,10 +3187,12 @@ int __init stl_init(void)
 		printk("STALLION: failed to register serial board device\n");
 	devfs_mk_dir("staliomem");
 
+	stallion_class = class_simple_create(THIS_MODULE, "staliomem");
 	for (i = 0; i < 4; i++) {
 		devfs_mk_cdev(MKDEV(STL_SIOMEMMAJOR, i),
 				S_IFCHR|S_IRUSR|S_IWUSR,
 				"staliomem/%d", i);
+		class_simple_device_add(stallion_class, MKDEV(STL_SIOMEMMAJOR, i), NULL, "staliomem%d", i);
 	}
 
 	stl_serial->owner = THIS_MODULE;

drivers/char/tipar.c

@@ -67,7 +67,7 @@
 /*
  * Version Information
  */
-#define DRIVER_VERSION "1.17"
+#define DRIVER_VERSION "1.19"
 #define DRIVER_AUTHOR  "Romain Lievin <roms@lpg.ticalc.org>"
 #define DRIVER_DESC    "Device driver for TI/PC parallel link cables"
 #define DRIVER_LICENSE "GPL"
@@ -361,10 +361,13 @@ tipar_ioctl(struct inode *inode, struct file *file,
 
 	switch (cmd) {
 	case IOCTL_TIPAR_DELAY:
-	  delay = (int)arg;    //get_user(delay, &arg);
-	  break;
+		delay = (int)arg;    //get_user(delay, &arg);
+		break;
 	case IOCTL_TIPAR_TIMEOUT:
-	  timeout = (int)arg;  //get_user(timeout, &arg);
+		if (arg != 0)
+                        timeout = (int)arg;
+                else
+                        retval = -EINVAL;
 	  break;
 	default:
 		retval = -ENOTTY;
@@ -399,7 +402,10 @@ tipar_setup(char *str)
 	str = get_options(str, ARRAY_SIZE(ints), ints);
 
 	if (ints[0] > 0) {
-		timeout = ints[1];
+		if (ints[1] != 0)
+                        timeout = ints[1];
+                else
+                        printk("tipar: wrong timeout value (0), using default value instead.");
 		if (ints[0] > 1) {
 			delay = ints[2];
 		}

drivers/char/tpqic02.c

@@ -94,6 +94,7 @@
 #include <linux/init.h>
 #include <linux/smp_lock.h>
 #include <linux/devfs_fs_kernel.h>
+#include <linux/device.h>
 
 #include <asm/dma.h>
 #include <asm/system.h>
@@ -229,6 +230,8 @@ static const char *format_names[] = {
 	"600"			/* untested. */
 };
 
+static struct class_simple *tpqic02_class;
+
 
 /* `exception_list' is needed for exception status reporting.
  * Exceptions 1..14 are defined by QIC-02 rev F.
@@ -2696,23 +2699,32 @@ int __init qic02_tape_init(void)
 		return -ENODEV;
 	}
 
+	tpqic02_class = class_simple_create(THIS_MODULE, TPQIC02_NAME);
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 2), NULL, "ntpqic11");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 2),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "ntpqic11");
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 3), NULL, "tpqic11");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 3),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "tpqic11");
 
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 4), NULL, "ntpqic24");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 4),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "ntpqic24");
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 5), NULL, "tpqic24");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 5),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "tpqic24");
 
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 6), NULL, "ntpqic20");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 6),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "ntpqic120");
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 7), NULL, "tpqic20");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 7),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "tpqic120");
 
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 8), NULL, "ntpqic50");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 8),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "ntpqic150");
+	class_simple_device_add(tpqic02_class, MKDEV(QIC02_TAPE_MAJOR, 9), NULL, "tpqic50");
 	devfs_mk_cdev(MKDEV(QIC02_TAPE_MAJOR, 9),
 		       S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP, "tpqic150");
 
@@ -2757,13 +2769,23 @@ static void qic02_module_exit(void)
 		qic02_release_resources();
 		
 	devfs_remove("ntpqic11");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 2));
 	devfs_remove("tpqic11");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 3));
 	devfs_remove("ntpqic24");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 4));
 	devfs_remove("tpqic24");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 5));
 	devfs_remove("ntpqic120");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 6));
 	devfs_remove("tpqic120");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 7));
 	devfs_remove("ntpqic150");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 8));
 	devfs_remove("tpqic150");
+	class_simple_device_remove(MKDEV(QIC02_TAPE_MAJOR, 9));
+
+	class_simple_destroy(tpqic02_class);
 }
 
 static int qic02_module_init(void)

drivers/char/vc_screen.c

@@ -36,6 +36,7 @@
 #include <linux/kbd_kern.h>
 #include <linux/console.h>
 #include <linux/smp_lock.h>
+#include <linux/device.h>
 #include <asm/uaccess.h>
 #include <asm/byteorder.h>
 #include <asm/unaligned.h>
@@ -469,6 +470,8 @@ static struct file_operations vcs_fops = {
 	.open		= vcs_open,
 };
 
+static struct class_simple *vc_class;
+
 void vcs_make_devfs(struct tty_struct *tty)
 {
 	devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 1),
@@ -477,19 +480,26 @@ void vcs_make_devfs(struct tty_struct *tty)
 	devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 129),
 			S_IFCHR|S_IRUSR|S_IWUSR,
 			"vcc/a%u", tty->index + 1);
+	class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, tty->index + 1), NULL, "vcs%u", tty->index + 1);
+	class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, tty->index + 129), NULL, "vcsa%u", tty->index + 1);
 }
 void vcs_remove_devfs(struct tty_struct *tty)
 {
 	devfs_remove("vcc/%u", tty->index + 1);
 	devfs_remove("vcc/a%u", tty->index + 1);
+	class_simple_device_remove(MKDEV(VCS_MAJOR, tty->index + 1));
+	class_simple_device_remove(MKDEV(VCS_MAJOR, tty->index + 129));
 }
 
 int __init vcs_init(void)
 {
 	if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops))
 		panic("unable to get major %d for vcs device", VCS_MAJOR);
+	vc_class = class_simple_create(THIS_MODULE, "vc");
 
 	devfs_mk_cdev(MKDEV(VCS_MAJOR, 0), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/0");
 	devfs_mk_cdev(MKDEV(VCS_MAJOR, 128), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/a0");
+	class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
+	class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
 	return 0;
 }

drivers/char/vt.c

@@ -2617,6 +2617,8 @@ static struct tty_operations con_ops = {
 
 int __init vty_init(void)
 {
+	vcs_init();
+
 	console_driver = alloc_tty_driver(MAX_NR_CONSOLES);
 	if (!console_driver)
 		panic("Couldn't allocate console driver\n");
@@ -2644,7 +2646,6 @@ int __init vty_init(void)
 #ifdef CONFIG_FRAMEBUFFER_CONSOLE
 	fb_console_init();
 #endif	
-	vcs_init();
 	return 0;
 }
 

drivers/isdn/capi/capi.c

@@ -37,6 +37,7 @@
 #include <linux/capi.h>
 #include <linux/kernelcapi.h>
 #include <linux/init.h>
+#include <linux/device.h>
 #include <linux/devfs_fs_kernel.h>
 #include <linux/isdn/capiutil.h>
 #include <linux/isdn/capicmd.h>
@@ -56,6 +57,8 @@ MODULE_LICENSE("GPL");
 
 /* -------- driver information -------------------------------------- */
 
+static struct class_simple *capi_class;
+
 int capi_major = 68;		/* allocated */
 #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
 #define CAPINC_NR_PORTS	32
@@ -1313,7 +1316,8 @@ static int capinc_tty_init(void)
 
 	drv->owner = THIS_MODULE;
 	drv->driver_name = "capi_nc";
-	drv->name = "capi/";
+	drv->devfs_name = "capi/";
+	drv->name = "capi";
 	drv->major = capi_ttymajor;
 	drv->minor_start = 0;
 	drv->type = TTY_DRIVER_TYPE_SERIAL;
@@ -1483,11 +1487,20 @@ static int __init capi_init(void)
 		return -EIO;
 	}
 
+	capi_class = class_simple_create(THIS_MODULE, "capi");
+	if (IS_ERR(capi_class)) {
+		unregister_chrdev(capi_major, "capi20");
+		return PTR_ERR(capi_class);
+	}
+
+	class_simple_device_add(capi_class, MKDEV(capi_major, 0), NULL, "capi");
 	devfs_mk_cdev(MKDEV(capi_major, 0), S_IFCHR | S_IRUSR | S_IWUSR,
 			"isdn/capi20");
 
 #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
 	if (capinc_tty_init() < 0) {
+		class_simple_device_remove(MKDEV(capi_major, 0));
+		class_simple_destroy(capi_class);
 		unregister_chrdev(capi_major, "capi20");
 		return -ENOMEM;
 	}
@@ -1514,6 +1527,8 @@ static void __exit capi_exit(void)
 {
 	proc_exit();
 
+	class_simple_device_remove(MKDEV(capi_major, 0));
+	class_simple_destroy(capi_class);
 	unregister_chrdev(capi_major, "capi20");
 	devfs_remove("isdn/capi20");
 

drivers/video/fbmem.c

@@ -32,6 +32,9 @@
 #include <linux/kmod.h>
 #endif
 #include <linux/devfs_fs_kernel.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
 
 #if defined(__mc68000__) || defined(CONFIG_APUS)
 #include <asm/setup.h>
@@ -1245,6 +1248,8 @@ static struct file_operations fb_fops = {
 #endif
 };
 
+static struct class_simple *fb_class;
+
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
@@ -1259,6 +1264,7 @@ int
 register_framebuffer(struct fb_info *fb_info)
 {
 	int i;
+	struct class_device *c;
 
 	if (num_registered_fb == FB_MAX)
 		return -ENXIO;
@@ -1267,6 +1273,12 @@ register_framebuffer(struct fb_info *fb_info)
 		if (!registered_fb[i])
 			break;
 	fb_info->node = i;
+
+	c = class_simple_device_add(fb_class, MKDEV(FB_MAJOR, i), NULL, "fb%d", i);
+	if (IS_ERR(c)) {
+		/* Not fatal */
+		printk(KERN_WARNING "Unable to create class_device for framebuffer %d; errno = %ld\n", i, PTR_ERR(c));
+	}
 	
 	if (fb_info->pixmap.addr == NULL) {
 		fb_info->pixmap.addr = kmalloc(FBPIXMAPSIZE, GFP_KERNEL);
@@ -1332,6 +1344,7 @@ unregister_framebuffer(struct fb_info *fb_info)
 		kfree(fb_info->sprite.addr);
 	registered_fb[i]=NULL;
 	num_registered_fb--;
+	class_simple_device_remove(MKDEV(FB_MAJOR, i));
 	return 0;
 }
 
@@ -1393,6 +1406,12 @@ fbmem_init(void)
 	if (register_chrdev(FB_MAJOR,"fb",&fb_fops))
 		printk("unable to get major %d for fb devs\n", FB_MAJOR);
 
+	fb_class = class_simple_create(THIS_MODULE, "graphics");
+	if (IS_ERR(fb_class)) {
+		printk(KERN_WARNING "Unable to create fb class; errno = %ld\n", PTR_ERR(fb_class));
+		fb_class = NULL;
+	}
+
 #ifdef CONFIG_FB_OF
 	if (ofonly) {
 		offb_init();

fs/coda/psdev.c

@@ -37,6 +37,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/smp_lock.h>
+#include <linux/device.h>
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/poll.h>
@@ -61,6 +62,7 @@ unsigned long coda_timeout = 30; /* .. secs, then signals will dequeue */
 
 
 struct venus_comm coda_comms[MAX_CODADEVS];
+static struct class_simple *coda_psdev_class;
 
 /*
  * Device operations
@@ -358,20 +360,38 @@ static struct file_operations coda_psdev_fops = {
 
 static int init_coda_psdev(void)
 {
-	int i;
+	int i, err = 0;
 	if (register_chrdev(CODA_PSDEV_MAJOR,"coda_psdev",
 				 &coda_psdev_fops)) {
               printk(KERN_ERR "coda_psdev: unable to get major %d\n", 
 		     CODA_PSDEV_MAJOR);
               return -EIO;
 	}
+	coda_psdev_class = class_simple_create(THIS_MODULE, "coda_psdev");
+	if (IS_ERR(coda_psdev_class)) {
+		err = PTR_ERR(coda_psdev_class);
+		goto out_chrdev;
+	}		
 	devfs_mk_dir ("coda");
 	for (i = 0; i < MAX_CODADEVS; i++) {
-		devfs_mk_cdev(MKDEV(CODA_PSDEV_MAJOR, i),
+		class_simple_device_add(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR,i), 
+				NULL, "cfs%d", i);
+		err = devfs_mk_cdev(MKDEV(CODA_PSDEV_MAJOR, i),
 				S_IFCHR|S_IRUSR|S_IWUSR, "coda/%d", i);
+		if (err)
+			goto out_class;
 	}
 	coda_sysctl_init();
-	return 0;
+	goto out;
+
+out_class:
+	for (i = 0; i < MAX_CODADEVS; i++) 
+		class_simple_device_remove(MKDEV(CODA_PSDEV_MAJOR, i));
+	class_simple_destroy(coda_psdev_class);
+out_chrdev:
+	unregister_chrdev(CODA_PSDEV_MAJOR, "coda_psdev");
+out:
+	return err;
 }
 
 
@@ -408,8 +428,11 @@ static int __init init_coda(void)
 	}
 	return 0;
 out:
-	for (i = 0; i < MAX_CODADEVS; i++)
+	for (i = 0; i < MAX_CODADEVS; i++) {
+		class_simple_device_remove(MKDEV(CODA_PSDEV_MAJOR, i));
 		devfs_remove("coda/%d", i);
+	}
+	class_simple_destroy(coda_psdev_class);
 	devfs_remove("coda");
 	unregister_chrdev(CODA_PSDEV_MAJOR,"coda_psdev");
 	coda_sysctl_clean();
@@ -427,8 +450,11 @@ static void __exit exit_coda(void)
         if ( err != 0 ) {
                 printk("coda: failed to unregister filesystem\n");
         }
-	for (i = 0; i < MAX_CODADEVS; i++)
+	for (i = 0; i < MAX_CODADEVS; i++) {
+		class_simple_device_remove(MKDEV(CODA_PSDEV_MAJOR, i));
 		devfs_remove("coda/%d", i);
+	}
+	class_simple_destroy(coda_psdev_class);
 	devfs_remove("coda");
 	unregister_chrdev(CODA_PSDEV_MAJOR, "coda_psdev");
 	coda_sysctl_clean();

lib/kobject.c

@@ -349,16 +349,16 @@ int kobject_set_name(struct kobject * kobj, const char * fmt, ...)
 		/* 
 		 * Need more space? Allocate it and try again 
 		 */
-		name = kmalloc(need,GFP_KERNEL);
+		limit = need + 1;
+		name = kmalloc(limit,GFP_KERNEL);
 		if (!name) {
 			error = -ENOMEM;
 			goto Done;
 		}
-		limit = need;
 		need = vsnprintf(name,limit,fmt,args);
 
 		/* Still? Give up. */
-		if (need > limit) {
+		if (need >= limit) {
 			kfree(name);
 			error = -EFAULT;
 			goto Done;