diff options
Diffstat (limited to 'drivers/usb/misc/idmouse.c')
| -rw-r--r-- | drivers/usb/misc/idmouse.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index 68df9ac7669..a54c3cb804c 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -24,7 +24,6 @@ #include <linux/module.h> #include <linux/completion.h> #include <linux/mutex.h> -#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <linux/usb.h> @@ -227,20 +226,16 @@ static int idmouse_open(struct inode *inode, struct file *file) struct usb_interface *interface; int result; - lock_kernel(); /* get the interface from minor number and driver information */ interface = usb_find_interface (&idmouse_driver, iminor (inode)); - if (!interface) { - unlock_kernel(); + if (!interface) return -ENODEV; - } mutex_lock(&open_disc_mutex); /* get the device information block from the interface */ dev = usb_get_intfdata(interface); if (!dev) { mutex_unlock(&open_disc_mutex); - unlock_kernel(); return -ENODEV; } @@ -277,7 +272,6 @@ error: /* unlock this device */ mutex_unlock(&dev->lock); - unlock_kernel(); return result; } |