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[media] gspca_main: wake wq on streamoff 

We check for not streaming as a condition to abort waiting in dqbuf, so
when another thread does a streamoff we should wake the wq.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2010-12-31 17:17:51 -03:00 committed by Mauro Carvalho Chehab
parent ce5610bca7
commit 0d0ae15dde
1 changed files with 2 additions and 0 deletions
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2
drivers/media/video/gspca/gspca.c
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@ -1634,6 +1634,8 @@ static int vidioc_streamoff(struct file *file, void *priv,
gspca_dev->usb_err = 0;
gspca_stream_off(gspca_dev);
mutex_unlock(&gspca_dev->usb_lock);
/* In case another thread is waiting in dqbuf */
wake_up_interruptible(&gspca_dev->wq);
/* empty the transfer queues */
atomic_set(&gspca_dev->fr_q, 0);