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| author | Peter Waechtler <pwaechtler@mac.com> | 2011-04-28 20:53:58 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2011-04-29 13:53:53 +0200 |
| commit | 06268b2a384ece73618c1ad7649d19905ab79806 (patch) | |
| tree | da225fd98a899a22959d78ffd80a86d8009ed3dd /drivers/hid | |
| parent | 35dca5b4a67a93bbb75c2753d6dc432dc8f82e5d (diff) | |
| download | linux-06268b2a384ece73618c1ad7649d19905ab79806.tar.gz linux-06268b2a384ece73618c1ad7649d19905ab79806.tar.bz2 linux-06268b2a384ece73618c1ad7649d19905ab79806.zip | |
HID: hiddev: fix error path in hiddev_read when interrupted
hiddev_read: in case mutex_lock_interruptible will be interrupted
remove the task from the wait queue.
Signed-off-by: Peter Waechtler <pwaechtler@mac.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/usbhid/hiddev.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index af0a7c1002af..891ff531cf34 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c @@ -367,8 +367,10 @@ static ssize_t hiddev_read(struct file * file, char __user * buffer, size_t coun /* let O_NONBLOCK tasks run */ mutex_unlock(&list->thread_lock); schedule(); - if (mutex_lock_interruptible(&list->thread_lock)) + if (mutex_lock_interruptible(&list->thread_lock)) { + finish_wait(&list->hiddev->wait, &wait); return -EINTR; + } set_current_state(TASK_INTERRUPTIBLE); } finish_wait(&list->hiddev->wait, &wait); |