diff options
| author | Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> | 2015-03-10 11:37:14 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-02 18:18:37 -0300 |
| commit | aeff09276748b66072f2db2e668cec955cf41959 (patch) | |
| tree | 6f761c99faefd4167006d2bc679df8847d4cc504 /drivers/media/usb/stk1160 | |
| parent | e933c6bc67d8129d184d5add4230eb8250646cb8 (diff) | |
[media] stk1160: Make sure current buffer is released
The available (i.e. not used) buffers are returned by stk1160_clear_queue(),
on the stop_streaming() path. However, this is insufficient and the current
buffer must be released as well. Fix it.
Cc: stable@vger.kernel.org
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/stk1160')
| -rw-r--r-- | drivers/media/usb/stk1160/stk1160-v4l.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/media/usb/stk1160/stk1160-v4l.c b/drivers/media/usb/stk1160/stk1160-v4l.c index 65a326c5128f..749ad5603c9e 100644 --- a/drivers/media/usb/stk1160/stk1160-v4l.c +++ b/drivers/media/usb/stk1160/stk1160-v4l.c @@ -240,6 +240,11 @@ static int stk1160_stop_streaming(struct stk1160 *dev) if (mutex_lock_interruptible(&dev->v4l_lock)) return -ERESTARTSYS; + /* + * Once URBs are cancelled, the URB complete handler + * won't be running. This is required to safely release the + * current buffer (dev->isoc_ctl.buf). + */ stk1160_cancel_isoc(dev); /* @@ -620,8 +625,16 @@ void stk1160_clear_queue(struct stk1160 *dev) stk1160_info("buffer [%p/%d] aborted\n", buf, buf->vb.v4l2_buf.index); } - /* It's important to clear current buffer */ - dev->isoc_ctl.buf = NULL; + + /* It's important to release the current buffer */ + if (dev->isoc_ctl.buf) { + buf = dev->isoc_ctl.buf; + dev->isoc_ctl.buf = NULL; + + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); + stk1160_info("buffer [%p/%d] aborted\n", + buf, buf->vb.v4l2_buf.index); + } spin_unlock_irqrestore(&dev->buf_lock, flags); } |