drm: bridge: Detach all bridges in a chain at encoder cleanup time
Instead of detaching only the bridge directly connected to the encoder,
detach all bridges in the chain.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-6-git-send-email-laurent.pinchart+renesas@ideasonboard.com
diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c
index 0944f08a..5dde3c6 100644
--- a/drivers/gpu/drm/drm_encoder.c
+++ b/drivers/gpu/drm/drm_encoder.c
@@ -159,8 +159,16 @@
* the indices on the drm_encoder after us in the encoder_list.
*/
- if (encoder->bridge)
- drm_bridge_detach(encoder->bridge);
+ if (encoder->bridge) {
+ struct drm_bridge *bridge = encoder->bridge;
+ struct drm_bridge *next;
+
+ while (bridge) {
+ next = bridge->next;
+ drm_bridge_detach(bridge);
+ bridge = next;
+ }
+ }
drm_mode_object_unregister(dev, &encoder->base);
kfree(encoder->name);