diff options
| author | Liu Ying <victor.liu@nxp.com> | 2026-01-23 17:22:17 +0800 |
|---|---|---|
| committer | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2026-02-03 16:54:28 +0100 |
| commit | fe6d29b082d49df336ebb92226a3c004ae9e3222 (patch) | |
| tree | 564be34788ec849a1a2a51ed79a5cf4bf681a54d /drivers | |
| parent | 45c0a8a70253ab97e676b9791891e389a531664b (diff) | |
drm/bridge: imx8qxp-pixel-combiner: Fix bailout for imx8qxp_pc_bridge_probe()
In case the channel0 is unavailable and bailing out from free_child is
needed when we fail to add a DRM bridge for the available channel1,
pointer pc->ch[0] in the bailout path would be NULL and it would be
dereferenced as pc->ch[0]->bridge.next_bridge. Fix this by checking
pc->ch[0] before dereferencing it.
Fixes: ae754f049ce1 ("drm/bridge: imx8qxp-pixel-combiner: get/put the next bridge")
Fixes: 99764593528f ("drm/bridge: imx8qxp-pixel-combiner: convert to devm_drm_bridge_alloc() API")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260123-imx8qxp-drm-bridge-fixes-v1-3-8bb85ada5866@nxp.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c index 74eda8b54023..99a9280edb4f 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c @@ -348,7 +348,7 @@ static int imx8qxp_pc_bridge_probe(struct platform_device *pdev) free_child: of_node_put(child); - if (i == 1 && pc->ch[0]->bridge.next_bridge) + if (i == 1 && pc->ch[0] && pc->ch[0]->bridge.next_bridge) drm_bridge_remove(&pc->ch[0]->bridge); pm_runtime_disable(dev); |