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@xxxxxxxxxx>
---
drivers/media/i2c/ov5647.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/ov5647.c b/drivers/media/i2c/ov5647.c
index 859cc5b0d14a3..2d2829f934c3c 100644
--- a/drivers/media/i2c/ov5647.c
+++ b/drivers/media/i2c/ov5647.c
@@ -460,10 +460,17 @@ 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 = {
--
2.27.0
