5.15-stable review patch. If anyone has any objections, please let me know.
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From: Cosmin Tanislav demonsingur@gmail.com
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@gmail.com Fixes: 0d3c81e82da9 ("media: v4l2-mc: add v4l2_create_fwnode_links helpers") Cc: stable@vger.kernel.org Reviewed-by: Laurent Pinchart laurent.pinchart+renesas@ideasonboard.com Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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 @@ -321,7 +321,7 @@ int v4l2_create_fwnode_links_to_pad(stru
sink_sd = media_entity_to_v4l2_subdev(sink->entity);
- 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;