drm/bridge: lt8912b: fix incorrect handling of of_* return values

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A static analysis shows several issues in the driver code at
probing time.

DT parsing errors were bad handled and could lead to bugs:
  - Bad error detection;
  - Bad release of resources

Fixes: 30e2ae943c ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Dan Carpenter  <dan.carpenter@oracle.com>
Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210415183639.1487-1-rdunlap@infradead.org
Signed-off-by: Robert Foss <robert.foss@linaro.org>

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Adrien Grassein 2021-03-31 15:33:13 +02:00 • committed by Robert Foss

parent ad085b3a71

commit 5a7bd25992

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1 changed files with 17 additions and 15 deletions

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drivers/gpu/drm/bridge/lontium-lt8912b.c

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