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[2/3] media: v4l2-dev.c: Allow driver-defined entity names

Message ID 20211207000629.4985-3-ribalda@chromium.org
State New
Headers show
Series uvc: Restore old vdev name | expand

Commit Message

Ricardo Ribalda Delgado Dec. 7, 2021, 12:06 a.m. UTC
If the driver provides an name for an entity, use it.
This is particularly useful for drivers that export multiple video
devices for the same hardware (i.e. metadata and data).

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
---
 drivers/media/v4l2-core/v4l2-dev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index d03ace324db0..4c00503b9349 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -832,7 +832,9 @@  static int video_register_media_controller(struct video_device *vdev)
 	}
 
 	if (vdev->entity.function != MEDIA_ENT_F_UNKNOWN) {
-		vdev->entity.name = vdev->name;
+		/* Use entity names provided by the driver, if available. */
+		if (!vdev->entity.name)
+			vdev->entity.name = vdev->name;
 
 		/* Needed just for backward compatibility with legacy MC API */
 		vdev->entity.info.dev.major = VIDEO_MAJOR;