diff options
Diffstat (limited to 'drivers/usb/misc/vstusb.c')
| -rw-r--r-- | drivers/usb/misc/vstusb.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/usb/misc/vstusb.c b/drivers/usb/misc/vstusb.c index b787b25..874c81b 100644 --- a/drivers/usb/misc/vstusb.c +++ b/drivers/usb/misc/vstusb.c @@ -27,7 +27,6 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/mutex.h> -#include <linux/smp_lock.h> #include <linux/uaccess.h> #include <linux/usb.h> @@ -104,23 +103,19 @@ static int vstusb_open(struct inode *inode, struct file *file) struct vstusb_device *vstdev; struct usb_interface *interface; - lock_kernel(); interface = usb_find_interface(&vstusb_driver, iminor(inode)); if (!interface) { printk(KERN_ERR KBUILD_MODNAME ": %s - error, can't find device for minor %d\n", __func__, iminor(inode)); - unlock_kernel(); return -ENODEV; } vstdev = usb_get_intfdata(interface); - if (!vstdev) { - unlock_kernel(); + if (!vstdev) return -ENODEV; - } /* lock this device */ mutex_lock(&vstdev->lock); @@ -128,7 +123,6 @@ static int vstusb_open(struct inode *inode, struct file *file) /* can only open one time */ if ((!vstdev->present) || (vstdev->isopen)) { mutex_unlock(&vstdev->lock); - unlock_kernel(); return -EBUSY; } @@ -143,7 +137,6 @@ static int vstusb_open(struct inode *inode, struct file *file) dev_dbg(&vstdev->usb_dev->dev, "%s: opened\n", __func__); mutex_unlock(&vstdev->lock); - unlock_kernel(); return 0; } |
