Re: [PATCH] drm/panel: jdi-fhd-r63452: remove panel on DSI attach failure
From: Dmitry Baryshkov
Date: Wed Apr 22 2026 - 15:27:22 EST
On Mon, Apr 20, 2026 at 03:52:15PM +0900, Myeonghun Pak wrote:
> The probe path calls drm_panel_add() before mipi_dsi_attach().
>
> If mipi_dsi_attach() fails, the driver returns without calling
>
> drm_panel_remove(), leaving the panel registered in the global DRM
> panel list. The driver's .remove() callback does not handle this case
> because failed probe does not transition through the normal bound-device
> removal path.
>
> Fix this by unwinding drm_panel_add() when mipi_dsi_attach() fails.
>
> Co-developed-by: Ijae Kim <ae878000@xxxxxxxxx>
> Signed-off-by: Ijae Kim <ae878000@xxxxxxxxx>
> Co-developed-by: Taegyu Kim <tmk5904@xxxxxxx>
> Signed-off-by: Taegyu Kim <tmk5904@xxxxxxx>
> Co-developed-by: Yuho Choi <dbgh9129@xxxxxxxxx>
> Signed-off-by: Yuho Choi <dbgh9129@xxxxxxxxx>
> Signed-off-by: Myeonghun Pak <mhun512@xxxxxxxxx>
> ---
> drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c | 1 +
> 1 file changed, 1 insertion(+)
>
Please group similar pathces in a single series. There is
devm_drm_panel_add() in drm-misc-next.
--
With best wishes
Dmitry