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media: ov5647: Protect s_stream() with mutex

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Use the driver mutex to protect s_stream() operations.
This will become more relevant once the sensor will support more formats
and set_format() could be issue concurrently to s_stream().

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Jacopo Mondi 2020-11-19 17:32:30 +01:00 committed by Mauro Carvalho Chehab
parent 464090c0af
commit ab614f2756
1 changed files with 9 additions and 2 deletions
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11
drivers/media/i2c/ov5647.c
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@ -462,10 +462,17 @@ static const struct v4l2_subdev_core_ops ov5647_subdev_core_ops = {
static int ov5647_s_stream(struct v4l2_subdev *sd, int enable)
{
struct ov5647 *sensor = to_state(sd);
int ret;
mutex_lock(&sensor->lock);
if (enable)
return ov5647_stream_on(sd);
ret = ov5647_stream_on(sd);
else
return ov5647_stream_off(sd);
ret = ov5647_stream_off(sd);
mutex_unlock(&sensor->lock);
return ret;
}
static const struct v4l2_subdev_video_ops ov5647_subdev_video_ops = {