6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Cosmin Tanislav <demonsingur@xxxxxxxxx>
commit fb2bd86270cd0ad004f4c614ba4f8c63a5720e25 upstream.
When creating links from a subdev to a sink, the current logic tries to
iterate over the endpoints of dev's fwnode.
This might not be correct when the subdev uses a different fwnode
compared to the dev's fwnode.
If, when registering, the subdev's fwnode is not set, the code inside
v4l2_async_register_subdev will set it to the dev's fwnode.
To fix this, just use the subdev's fwnode.
Signed-off-by: Cosmin Tanislav <demonsingur@xxxxxxxxx>
Fixes: 0d3c81e82da9 ("media: v4l2-mc: add v4l2_create_fwnode_links helpers")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-mc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/v4l2-core/v4l2-mc.c
+++ b/drivers/media/v4l2-core/v4l2-mc.c
@@ -329,7 +329,7 @@ int v4l2_create_fwnode_links_to_pad(stru
if (!(sink->flags & MEDIA_PAD_FL_SINK))
return -EINVAL;
- fwnode_graph_for_each_endpoint(dev_fwnode(src_sd->dev), endpoint) {
+ fwnode_graph_for_each_endpoint(src_sd->fwnode, endpoint) {
struct fwnode_handle *remote_ep;
int src_idx, sink_idx, ret;
struct media_pad *src;
