This is a note to let you know that I've just added the patch titled drm/bridge: tc358767: Handle dsi_lanes == 0 as invalid to the 5.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-bridge-tc358767-handle-dsi_lanes-0-as-invalid.patch and it can be found in the queue-5.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit e57baae19f8265324ff277dbbba6e40e983e1f1a Author: Marek Vasut <marex@xxxxxxx> Date: Thu May 19 11:51:36 2022 +0200 drm/bridge: tc358767: Handle dsi_lanes == 0 as invalid [ Upstream commit 0d662350928e6787d29ab205e47e5aa6f1f792f9 ] Handle empty data-lanes = < >; property, which translates to dsi_lanes = 0 as invalid. Reviewed-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Fixes: bbfd3190b6562 ("drm/bridge: tc358767: Add DSI-to-DPI mode support") Signed-off-by: Marek Vasut <marex@xxxxxxx> Cc: Jonas Karlman <jonas@xxxxxxxxx> Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Cc: Marek Vasut <marex@xxxxxxx> Cc: Maxime Ripard <maxime@xxxxxxxxxx> Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Cc: Robert Foss <robert.foss@xxxxxxxxxx> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20220519095137.11896-1-marex@xxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 485717c8f0b4..466b8fc9836a 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1871,7 +1871,7 @@ static int tc_mipi_dsi_host_attach(struct tc_data *tc) of_node_put(host_node); of_node_put(endpoint); - if (dsi_lanes < 0 || dsi_lanes > 4) + if (dsi_lanes <= 0 || dsi_lanes > 4) return -EINVAL; if (!host)