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Commit 92931d24 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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USB: serial: core: clean up dbg and printk usage. 

This cleans up the usb-serial module to remove all old usages of dbg()
and "raw" printk() calls for error reporting (there are some info
messages left for now.)
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent fee84a54
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Showing with 77 additions and 84 deletions
drivers/usb/serial/console.c
View file @ 92931d24
......@@ -11,6 +11,8 @@
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
......@@ -111,8 +113,7 @@ static int usb_console_setup(struct console *co, char *options)
serial = usb_serial_get_by_index(co->index);
if (serial == NULL) {
/* no device is connected yet, sorry :( */
printk(KERN_ERR "No USB device connected to ttyUSB%i\n",
co->index);
pr_err("No USB device connected to ttyUSB%i\n", co->index);
return -ENODEV;
}
......@@ -211,10 +212,10 @@ static void usb_console_write(struct console *co,
if (count == 0)
return;
dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
pr_debug("%s - port %d, %d byte(s)\n", __func__, port->number, count);
if (!port->port.console) {
dbg("%s - port not opened", __func__);
pr_debug("%s - port not opened\n", __func__);
return;
}
......@@ -235,7 +236,7 @@ static void usb_console_write(struct console *co,
retval = serial->type->write(NULL, port, buf, i);
else
retval = usb_serial_generic_write(NULL, port, buf, i);
dbg("%s - return value : %d", __func__, retval);
pr_debug("%s - return value : %d\n", __func__, retval);
if (lf) {
/* append CR after LF */
unsigned char cr = 13;
......@@ -245,7 +246,7 @@ static void usb_console_write(struct console *co,
else
retval = usb_serial_generic_write(NULL,
port, &cr, 1);
dbg("%s - return value : %d", __func__, retval);
pr_debug("%s - return value : %d\n", __func__, retval);
}
buf += i;
count -= i;
......@@ -300,7 +301,7 @@ void usb_serial_console_init(int serial_debug, int minor)
* register_console). console_write() is called immediately
* from register_console iff CON_PRINTBUFFER is set in flags.
*/
dbg("registering the USB serial console.");
pr_debug("registering the USB serial console.\n");
register_console(&usbcons);
}
}
......
drivers/usb/serial/usb-serial.c
View file @ 92931d24
......@@ -17,6 +17,8 @@
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
......@@ -87,7 +89,7 @@ static struct usb_serial *get_free_serial(struct usb_serial *serial,
unsigned int i, j;
int good_spot;
dbg("%s %d", __func__, num_ports);
dev_dbg(&serial->interface->dev, "%s %d\n", __func__, num_ports);
*minor = 0;
mutex_lock(&table_lock);
......@@ -107,7 +109,7 @@ static struct usb_serial *get_free_serial(struct usb_serial *serial,
*minor = i;
j = 0;
dbg("%s - minor base = %d", __func__, *minor);
dev_dbg(&serial->interface->dev, "%s - minor base = %d\n", __func__, *minor);
for (i = *minor; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i) {
serial_table[i] = serial;
serial->port[j++]->number = i;
......@@ -137,8 +139,6 @@ static void destroy_serial(struct kref *kref)
serial = to_usb_serial(kref);
dbg("%s - %s", __func__, serial->type->description);
/* return the minor range that this device had */
if (serial->minor != SERIAL_TTY_NO_MINOR)
return_serial(serial);
......@@ -252,7 +252,7 @@ static int serial_open(struct tty_struct *tty, struct file *filp)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
return tty_port_open(&port->port, tty, filp);
}
......@@ -283,14 +283,16 @@ static void serial_down(struct tty_port *tport)
static void serial_hangup(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
tty_port_hangup(&port->port);
}
static void serial_close(struct tty_struct *tty, struct file *filp)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
tty_port_close(&port->port, tty, filp);
}
......@@ -316,7 +318,7 @@ static void serial_cleanup(struct tty_struct *tty)
if (port->port.console)
return;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
tty->driver_data = NULL;
......@@ -341,7 +343,8 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf,
if (port->serial->dev->state == USB_STATE_NOTATTACHED)
goto exit;
dbg("%s - port %d, %d byte(s)", __func__, port->number, count);
dev_dbg(tty->dev, "%s - port %d, %d byte(s)\n", __func__,
port->number, count);
/* pass on to the driver specific version of this function */
retval = port->serial->type->write(tty, port, buf, count);
......@@ -354,7 +357,8 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf,
static int serial_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
/* pass on to the driver specific version of this function */
return port->serial->type->write_room(tty);
}
......@@ -362,7 +366,8 @@ static int serial_write_room(struct tty_struct *tty)
static int serial_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
/* if the device was unplugged then any remaining characters
fell out of the connector ;) */
......@@ -375,7 +380,8 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
static void serial_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
/* pass on to the driver specific version of this function */
if (port->serial->type->throttle)
......@@ -385,7 +391,8 @@ static void serial_throttle(struct tty_struct *tty)
static void serial_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
/* pass on to the driver specific version of this function */
if (port->serial->type->unthrottle)
......@@ -398,7 +405,8 @@ static int serial_ioctl(struct tty_struct *tty,
struct usb_serial_port *port = tty->driver_data;
int retval = -ENODEV;
dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
dev_dbg(tty->dev, "%s - port %d, cmd 0x%.4x\n", __func__,
port->number, cmd);
/* pass on to the driver specific version of this function
if it is available */
......@@ -412,7 +420,8 @@ static int serial_ioctl(struct tty_struct *tty,
static void serial_set_termios(struct tty_struct *tty, struct ktermios *old)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
/* pass on to the driver specific version of this function
if it is available */
......@@ -426,7 +435,7 @@ static int serial_break(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
/* pass on to the driver specific version of this function
if it is available */
......@@ -485,7 +494,7 @@ static int serial_tiocmget(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
if (port->serial->type->tiocmget)
return port->serial->type->tiocmget(tty);
......@@ -497,7 +506,7 @@ static int serial_tiocmset(struct tty_struct *tty,
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
if (port->serial->type->tiocmset)
return port->serial->type->tiocmset(tty, set, clear);
......@@ -509,7 +518,7 @@ static int serial_get_icount(struct tty_struct *tty,
{
struct usb_serial_port *port = tty->driver_data;
dbg("%s - port %d", __func__, port->number);
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
if (port->serial->type->get_icount)
return port->serial->type->get_icount(tty, icount);
......@@ -533,12 +542,12 @@ static void usb_serial_port_work(struct work_struct *work)
container_of(work, struct usb_serial_port, work);
struct tty_struct *tty;
dbg("%s - port %d", __func__, port->number);
tty = tty_port_tty_get(&port->port);
if (!tty)
return;
dev_dbg(tty->dev, "%s - port %d\n", __func__, port->number);
tty_wakeup(tty);
tty_kref_put(tty);
}
......@@ -571,7 +580,7 @@ static void port_release(struct device *dev)
struct usb_serial_port *port = to_usb_serial_port(dev);
int i;
dbg ("%s - %s", __func__, dev_name(dev));
dev_dbg(dev, "%s\n", __func__);
/*
* Stop all the traffic before cancelling the work, so that
......@@ -640,12 +649,12 @@ static const struct usb_device_id *get_iface_id(struct usb_serial_driver *drv,
id = usb_match_id(intf, drv->id_table);
if (id) {
dbg("static descriptor matches");
dev_dbg(&intf->dev, "static descriptor matches\n");
goto exit;
}
id = match_dynamic_id(intf, drv);
if (id)
dbg("dynamic descriptor matches");
dev_dbg(&intf->dev, "dynamic descriptor matches\n");
exit:
return id;
}
......@@ -699,6 +708,7 @@ static const struct tty_port_operations serial_port_ops = {
static int usb_serial_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct device *ddev = &interface->dev;
struct usb_device *dev = interface_to_usbdev(interface);
struct usb_serial *serial = NULL;
struct usb_serial_port *port;
......@@ -725,13 +735,13 @@ static int usb_serial_probe(struct usb_interface *interface,
type = search_serial_device(interface);
if (!type) {
mutex_unlock(&table_lock);
dbg("none matched");
dev_dbg(ddev, "none matched\n");
return -ENODEV;
}
if (!try_module_get(type->driver.owner)) {
mutex_unlock(&table_lock);
dev_err(&interface->dev, "module get failed, exiting\n");
dev_err(ddev, "module get failed, exiting\n");
return -EIO;
}
mutex_unlock(&table_lock);
......@@ -739,7 +749,7 @@ static int usb_serial_probe(struct usb_interface *interface,
serial = create_serial(dev, interface, type);
if (!serial) {
module_put(type->driver.owner);
dev_err(&interface->dev, "%s - out of memory\n", __func__);
dev_err(ddev, "%s - out of memory\n", __func__);
return -ENOMEM;
}
......@@ -751,7 +761,7 @@ static int usb_serial_probe(struct usb_interface *interface,
retval = type->probe(serial, id);
if (retval) {
dbg("sub driver rejected device");
dev_dbg(ddev, "sub driver rejected device\n");
usb_serial_put(serial);
module_put(type->driver.owner);
return retval;
......@@ -766,28 +776,28 @@ static int usb_serial_probe(struct usb_interface *interface,
if (usb_endpoint_is_bulk_in(endpoint)) {
/* we found a bulk in endpoint */
dbg("found bulk in on endpoint %d", i);
dev_dbg(ddev, "found bulk in on endpoint %d\n", i);
bulk_in_endpoint[num_bulk_in] = endpoint;
++num_bulk_in;
}
if (usb_endpoint_is_bulk_out(endpoint)) {
/* we found a bulk out endpoint */
dbg("found bulk out on endpoint %d", i);
dev_dbg(ddev, "found bulk out on endpoint %d\n", i);
bulk_out_endpoint[num_bulk_out] = endpoint;
++num_bulk_out;
}
if (usb_endpoint_is_int_in(endpoint)) {
/* we found a interrupt in endpoint */
dbg("found interrupt in on endpoint %d", i);
dev_dbg(ddev, "found interrupt in on endpoint %d\n", i);
interrupt_in_endpoint[num_interrupt_in] = endpoint;
++num_interrupt_in;
}
if (usb_endpoint_is_int_out(endpoint)) {
/* we found an interrupt out endpoint */
dbg("found interrupt out on endpoint %d", i);
dev_dbg(ddev, "found interrupt out on endpoint %d\n", i);
interrupt_out_endpoint[num_interrupt_out] = endpoint;
++num_interrupt_out;
}
......@@ -811,7 +821,7 @@ static int usb_serial_probe(struct usb_interface *interface,
endpoint = &iface_desc->endpoint[i].desc;
if (usb_endpoint_is_int_in(endpoint)) {
/* we found a interrupt in endpoint */
dbg("found interrupt in for Prolific device on separate interface");
dev_dbg(ddev, "found interrupt in for Prolific device on separate interface\n");
interrupt_in_endpoint[num_interrupt_in] = endpoint;
++num_interrupt_in;
}
......@@ -823,7 +833,7 @@ static int usb_serial_probe(struct usb_interface *interface,
* properly during a later invocation of usb_serial_probe
*/
if (num_bulk_in == 0 || num_bulk_out == 0) {
dev_info(&interface->dev, "PL-2303 hack: descriptors matched but endpoints did not\n");
dev_info(ddev, "PL-2303 hack: descriptors matched but endpoints did not\n");
usb_serial_put(serial);
module_put(type->driver.owner);
return -ENODEV;
......@@ -836,14 +846,13 @@ static int usb_serial_probe(struct usb_interface *interface,
if (type == &usb_serial_generic_device) {
num_ports = num_bulk_out;
if (num_ports == 0) {
dev_err(&interface->dev,
"Generic device with no bulk out, not allowed.\n");
dev_err(ddev, "Generic device with no bulk out, not allowed.\n");
usb_serial_put(serial);
module_put(type->driver.owner);
return -EIO;
}
dev_info(&interface->dev, "The \"generic\" usb-serial driver is only for testing and one-off prototypes.\n");
dev_info(&interface->dev, "Tell linux-usb@vger.kernel.org to add your device to a proper driver.\n");
dev_info(ddev, "The \"generic\" usb-serial driver is only for testing and one-off prototypes.\n");
dev_info(ddev, "Tell linux-usb@vger.kernel.org to add your device to a proper driver.\n");
}
#endif
if (!num_ports) {
......@@ -861,8 +870,7 @@ static int usb_serial_probe(struct usb_interface *interface,
serial->num_interrupt_out = num_interrupt_out;
/* found all that we need */
dev_info(&interface->dev, "%s converter detected\n",
type->description);
dev_info(ddev, "%s converter detected\n", type->description);
/* create our ports, we need as many as the max endpoints */
/* we don't use num_ports here because some devices have more
......@@ -873,8 +881,7 @@ static int usb_serial_probe(struct usb_interface *interface,
max_endpoints = max(max_endpoints, (int)serial->num_ports);
serial->num_port_pointers = max_endpoints;
dbg("%s - setting up %d port structures for this device",
__func__, max_endpoints);
dev_dbg(ddev, "setting up %d port structures for this device", max_endpoints);
for (i = 0; i < max_endpoints; ++i) {
port = kzalloc(sizeof(struct usb_serial_port), GFP_KERNEL);
if (!port)
......@@ -907,15 +914,13 @@ static int usb_serial_probe(struct usb_interface *interface,
set_bit(j, &port->read_urbs_free);
port->read_urbs[j] = usb_alloc_urb(0, GFP_KERNEL);
if (!port->read_urbs[j]) {
dev_err(&interface->dev,
"No free urbs available\n");
dev_err(ddev, "No free urbs available\n");
goto probe_error;
}
port->bulk_in_buffers[j] = kmalloc(buffer_size,
GFP_KERNEL);
if (!port->bulk_in_buffers[j]) {
dev_err(&interface->dev,
"Couldn't allocate bulk_in_buffer\n");
dev_err(ddev, "Couldn't allocate bulk_in_buffer\n");
goto probe_error;
}
usb_fill_bulk_urb(port->read_urbs[j], dev,
......@@ -945,15 +950,13 @@ static int usb_serial_probe(struct usb_interface *interface,
set_bit(j, &port->write_urbs_free);
port->write_urbs[j] = usb_alloc_urb(0, GFP_KERNEL);
if (!port->write_urbs[j]) {
dev_err(&interface->dev,
"No free urbs available\n");
dev_err(ddev, "No free urbs available\n");
goto probe_error;
}
port->bulk_out_buffers[j] = kmalloc(buffer_size,
GFP_KERNEL);
if (!port->bulk_out_buffers[j]) {
dev_err(&interface->dev,
"Couldn't allocate bulk_out_buffer\n");
dev_err(ddev, "Couldn't allocate bulk_out_buffer\n");
goto probe_error;
}
usb_fill_bulk_urb(port->write_urbs[j], dev,
......@@ -974,8 +977,7 @@ static int usb_serial_probe(struct usb_interface *interface,
port = serial->port[i];
port->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!port->interrupt_in_urb) {
dev_err(&interface->dev,
"No free urbs available\n");
dev_err(ddev, "No free urbs available\n");
goto probe_error;
}
buffer_size = usb_endpoint_maxp(endpoint);
......@@ -984,8 +986,7 @@ static int usb_serial_probe(struct usb_interface *interface,
port->interrupt_in_buffer = kmalloc(buffer_size,
GFP_KERNEL);
if (!port->interrupt_in_buffer) {
dev_err(&interface->dev,
"Couldn't allocate interrupt_in_buffer\n");
dev_err(ddev, "Couldn't allocate interrupt_in_buffer\n");
goto probe_error;
}
usb_fill_int_urb(port->interrupt_in_urb, dev,
......@@ -996,7 +997,7 @@ static int usb_serial_probe(struct usb_interface *interface,
endpoint->bInterval);
}
} else if (num_interrupt_in) {
dbg("the device claims to support interrupt in transfers, but read_int_callback is not defined");
dev_dbg(ddev, "The device claims to support interrupt in transfers, but read_int_callback is not defined\n");
}
if (serial->type->write_int_callback) {
......@@ -1005,8 +1006,7 @@ static int usb_serial_probe(struct usb_interface *interface,
port = serial->port[i];
port->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!port->interrupt_out_urb) {
dev_err(&interface->dev,
"No free urbs available\n");
dev_err(ddev, "No free urbs available\n");
goto probe_error;
}
buffer_size = usb_endpoint_maxp(endpoint);
......@@ -1016,8 +1016,7 @@ static int usb_serial_probe(struct usb_interface *interface,
port->interrupt_out_buffer = kmalloc(buffer_size,
GFP_KERNEL);
if (!port->interrupt_out_buffer) {
dev_err(&interface->dev,
"Couldn't allocate interrupt_out_buffer\n");
dev_err(ddev, "Couldn't allocate interrupt_out_buffer\n");
goto probe_error;
}
usb_fill_int_urb(port->interrupt_out_urb, dev,
......@@ -1028,7 +1027,7 @@ static int usb_serial_probe(struct usb_interface *interface,
endpoint->bInterval);
}
} else if (num_interrupt_out) {
dbg("the device claims to support interrupt out transfers, but write_int_callback is not defined");
dev_dbg(ddev, "The device claims to support interrupt out transfers, but write_int_callback is not defined\n");
}
usb_set_intfdata(interface, serial);
......@@ -1056,7 +1055,7 @@ static int usb_serial_probe(struct usb_interface *interface,
serial->disconnected = 1;
if (get_free_serial(serial, num_ports, &minor) == NULL) {
dev_err(&interface->dev, "No more free serial devices\n");
dev_err(ddev, "No more free serial devices\n");
goto probe_error;
}
serial->minor = minor;
......@@ -1065,13 +1064,12 @@ static int usb_serial_probe(struct usb_interface *interface,
for (i = 0; i < num_ports; ++i) {
port = serial->port[i];
dev_set_name(&port->dev, "ttyUSB%d", port->number);
dbg ("%s - registering %s", __func__, dev_name(&port->dev));
dev_dbg(ddev, "registering %s", dev_name(&port->dev));
device_enable_async_suspend(&port->dev);
retval = device_add(&port->dev);
if (retval)
dev_err(&port->dev, "Error registering port device, "
"continuing\n");
dev_err(ddev, "Error registering port device, continuing\n");
}
serial->disconnected = 0;
......@@ -1229,8 +1227,7 @@ static int __init usb_serial_init(void)
result = bus_register(&usb_serial_bus_type);
if (result) {
printk(KERN_ERR "usb-serial: %s - registering bus driver "
"failed\n", __func__);
pr_err("%s - registering bus driver failed\n", __func__);
goto exit_bus;
}
......@@ -1250,24 +1247,21 @@ static int __init usb_serial_init(void)
tty_set_operations(usb_serial_tty_driver, &serial_ops);
result = tty_register_driver(usb_serial_tty_driver);
if (result) {
printk(KERN_ERR "usb-serial: %s - tty_register_driver failed\n",
__func__);
pr_err("%s - tty_register_driver failed\n", __func__);
goto exit_reg_driver;
}
/* register the USB driver */
result = usb_register(&usb_serial_driver);
if (result < 0) {
printk(KERN_ERR "usb-serial: %s - usb_register failed\n",
__func__);
pr_err("%s - usb_register failed\n", __func__);
goto exit_tty;
}
/* register the generic driver, if we should */
result = usb_serial_generic_register(debug);
if (result < 0) {
printk(KERN_ERR "usb-serial: %s - registering generic "
"driver failed\n", __func__);
pr_err("%s - registering generic driver failed\n", __func__);
goto exit_generic;
}
......@@ -1285,8 +1279,7 @@ static int __init usb_serial_init(void)
bus_unregister(&usb_serial_bus_type);
exit_bus:
printk(KERN_ERR "usb-serial: %s - returning with error %d\n",
__func__, result);
pr_err("%s - returning with error %d\n", __func__, result);
put_tty_driver(usb_serial_tty_driver);
return result;
}
......@@ -1312,7 +1305,7 @@ module_exit(usb_serial_exit);
do { \
if (!type->function) { \
type->function = usb_serial_generic_##function; \
dbg("Had to override the " #function \
pr_debug("Had to override the " #function \
" usb serial operation with the generic one.");\
} \
} while (0)
......@@ -1355,8 +1348,7 @@ static int usb_serial_register(struct usb_serial_driver *driver)
retval = usb_serial_bus_register(driver);
if (retval) {
printk(KERN_ERR "usb-serial: problem %d when registering "
"driver %s\n", retval, driver->description);
pr_err("problem %d when registering driver %s\n", retval, driver->description);
list_del(&driver->driver_list);
} else
printk(KERN_INFO "USB Serial support registered for %s\n",
......
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