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USB: skeleton: fix coding style issues. 

This fixes up the majority of the coding style issues in the
usb-skeleton driver.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2009-09-11 16:07:30 -07:00
parent 8cd0166434
commit 3ae9da1c99
1 changed files with 28 additions and 15 deletions
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33
drivers/usb/usb-skeleton.c
View File

@ -18,7 +18,7 @@
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/kref.h> #include <linux/kref.h>
#include <asm/uaccess.h> #include <linux/uaccess.h>
#include <linux/usb.h> #include <linux/usb.h>
#include <linux/mutex.h> #include <linux/mutex.h>
@ -239,7 +239,8 @@ static int skel_do_read_io(struct usb_skel *dev, size_t count)
return rv; return rv;
} }
static ssize_t skel_read(struct file *file, char *buffer, size_t count, loff_t *ppos) static ssize_t skel_read(struct file *file, char *buffer, size_t count,
loff_t *ppos)
{ {
struct usb_skel *dev; struct usb_skel *dev;
int rv; int rv;
@ -299,7 +300,8 @@ retry:
} }
/* errors must be reported */ /* errors must be reported */
if ((rv = dev->errors) < 0) { rv = dev->errors;
if (rv < 0) {
/* any error is reported once */ /* any error is reported once */
dev->errors = 0; dev->errors = 0;
/* to preserve notifications about reset */ /* to preserve notifications about reset */
@ -390,7 +392,8 @@ static void skel_write_bulk_callback(struct urb *urb)
up(&dev->limit_sem); up(&dev->limit_sem);
} }
static ssize_t skel_write(struct file *file, const char *user_buffer, size_t count, loff_t *ppos) static ssize_t skel_write(struct file *file, const char *user_buffer,
size_t count, loff_t *ppos)
{ {
struct usb_skel *dev; struct usb_skel *dev;
int retval = 0; int retval = 0;
@ -404,7 +407,10 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, size_t cou
if (count == 0) if (count == 0)
goto exit; goto exit;
/* limit the number of URBs in flight to stop a user from using up all RAM */ /*
* limit the number of URBs in flight to stop a user from using up all
* RAM
*/
if (!file->f_flags & O_NONBLOCK) { if (!file->f_flags & O_NONBLOCK) {
if (down_interruptible(&dev->limit_sem)) { if (down_interruptible(&dev->limit_sem)) {
retval = -ERESTARTSYS; retval = -ERESTARTSYS;
@ -418,7 +424,8 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, size_t cou
} }
spin_lock_irq(&dev->err_lock); spin_lock_irq(&dev->err_lock);
if ((retval = dev->errors) < 0) { retval = dev->errors;
if (retval < 0) {
/* any error is reported once */ /* any error is reported once */
dev->errors = 0; dev->errors = 0;
/* to preserve notifications about reset */ /* to preserve notifications about reset */
@ -435,7 +442,8 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, size_t cou
goto error; goto error;
} }
buf = usb_buffer_alloc(dev->udev, writesize, GFP_KERNEL, &urb->transfer_dma); buf = usb_buffer_alloc(dev->udev, writesize, GFP_KERNEL,
&urb->transfer_dma);
if (!buf) { if (!buf) {
retval = -ENOMEM; retval = -ENOMEM;
goto error; goto error;
@ -465,11 +473,15 @@ static ssize_t skel_write(struct file *file, const char *user_buffer, size_t cou
retval = usb_submit_urb(urb, GFP_KERNEL); retval = usb_submit_urb(urb, GFP_KERNEL);
mutex_unlock(&dev->io_mutex); mutex_unlock(&dev->io_mutex);
if (retval) { if (retval) {
err("%s - failed submitting write urb, error %d", __func__, retval); err("%s - failed submitting write urb, error %d", __func__,
retval);
goto error_unanchor; goto error_unanchor;
} }
/* release our reference to this urb, the USB core will eventually free it entirely */ /*
* release our reference to this urb, the USB core will eventually free
* it entirely
*/
usb_free_urb(urb); usb_free_urb(urb);
@ -507,7 +519,8 @@ static struct usb_class_driver skel_class = {
.minor_base = USB_SKEL_MINOR_BASE, .minor_base = USB_SKEL_MINOR_BASE,
}; };
static int skel_probe(struct usb_interface *interface, const struct usb_device_id *id) static int skel_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{ {
struct usb_skel *dev; struct usb_skel *dev;
struct usb_host_interface *iface_desc; struct usb_host_interface *iface_desc;