mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-20 19:06:39 -04:00
b99deb6157
This driver obtains a bridge pointer from of_drm_find_bridge() in the probe function and stores it until driver removal. of_drm_find_bridge() is deprecated, so move to of_drm_find_and_get_bridge() for the bridge to be refcounted and use bridge->next_bridge to put the reference on deallocation. To keep the code as simple and reliable as possible remove the intermediate next_bridge and selected_bridge variables. Get/put operations on the remaining pointer is pl->bridge.next_bridge, which is tied to the struct imx8qxp_pixel_link lifetime, are: - get reference when assigned (by of_drm_find_and_get_bridge()) - put reference before reassignment if reassignment happens - put reference when the struct imx8qxp_pixel_link embedding the struct drm_bridge is destroyed (struct drm_bridge::next_bridge) Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Acked-by: Liu Ying <victor.liu@nxp.com> Signed-off-by: Liu Ying <victor.liu@nxp.com> Link: https://lore.kernel.org/r/20260211-drm-bridge-alloc-getput-drm_of_find_bridge-v6-1-651ddfd13bdb@bootlin.com