diff options
Diffstat (limited to 'drivers/usb/core/devio.c')
| -rw-r--r-- | drivers/usb/core/devio.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 186790b06b11..0100a54165cd 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -48,9 +48,6 @@ #define USB_DEVICE_MAX (USB_MAXBUS * 128) #define USB_SG_SIZE 16384 /* split-size for large txs */ -/* Mutual exclusion for removal, open, and release */ -DEFINE_MUTEX(usbfs_mutex); - struct usb_dev_state { struct list_head list; /* state list */ struct usb_device *dev; @@ -979,15 +976,9 @@ static int usbdev_open(struct inode *inode, struct file *file) ret = -ENODEV; - /* Protect against simultaneous removal or release */ - mutex_lock(&usbfs_mutex); - /* usbdev device-node */ if (imajor(inode) == USB_DEVICE_MAJOR) dev = usbdev_lookup_by_devt(inode->i_rdev); - - mutex_unlock(&usbfs_mutex); - if (!dev) goto out_free_ps; |