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>
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index af0a7c1..891ff53 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -367,8 +367,10 @@
/* 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);