[media] soc-camera: remove struct soc_camera_device::video_lock

Currently soc-camera has a per-device node lock, used for video operations
and a per-host lock for code paths, modifying host's pipeline. Manipulating
the two locks increases complexity and doesn't bring any advantages. This
patch removes the per-device lock and uses the per-host lock for all
operations.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 0370a9517282..5a662c981484 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -46,9 +46,8 @@ struct soc_camera_device {
         int num_user_formats;
         enum v4l2_field field;          /* Preserve field over close() */
         void *host_priv;                /* Per-device host private data */
-        /* soc_camera.c private count. Only accessed with .video_lock held */
+        /* soc_camera.c private count. Only accessed with .host_lock held */
         int use_count;
-        struct mutex video_lock;        /* Protects device data */
         struct file *streamer;          /* stream owner */
         union {
                 struct videobuf_queue vb_vidq;