[media] omap3isp: Don't fail streamon when the sensor doesn't implement s_stream

The code handles subdevs with no s_stream operation correctly, but
returns -ENOIOCTLCMD by mistake if the first subdev in the chain has no
s_stream operation. Return 0 in that case.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/media/video/omap3isp/isp.c b/drivers/media/video/omap3isp/isp.c
index 5cea2bbd7014..fda4be0066ac 100644
--- a/drivers/media/video/omap3isp/isp.c
+++ b/drivers/media/video/omap3isp/isp.c
@@ -732,7 +732,7 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
         struct media_pad *pad;
         struct v4l2_subdev *subdev;
         unsigned long flags;
-        int ret = 0;
+        int ret;
 
         spin_lock_irqsave(&pipe->lock, flags);
         pipe->state &= ~(ISP_PIPELINE_IDLE_INPUT | ISP_PIPELINE_IDLE_OUTPUT);
@@ -756,7 +756,7 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
 
                 ret = v4l2_subdev_call(subdev, video, s_stream, mode);
                 if (ret < 0 && ret != -ENOIOCTLCMD)
-                        break;
+                        return ret;
 
                 if (subdev == &isp->isp_ccdc.subdev) {
                         v4l2_subdev_call(&isp->isp_aewb.subdev, video,
@@ -777,7 +777,7 @@ static int isp_pipeline_enable(struct isp_pipeline *pipe,
         if (pipe->do_propagation && mode == ISP_PIPELINE_STREAM_SINGLESHOT)
                 atomic_inc(&pipe->frame_number);
 
-        return ret;
+        return 0;
 }
 
 static int isp_pipeline_wait_resizer(struct isp_device *isp)