gpu: lontium-lt9611: Fix NULL pointer dereference in lt9611_connector_init()
authorZeng Jingxiang <linuszeng@tencent.com>
Wed, 27 Jul 2022 07:31:19 +0000 (15:31 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 26 Oct 2022 11:25:48 +0000 (13:25 +0200)
commit3959e8faf8bf6bea619e8856c736db64e6eced37
tree1970a3c2684fd75d1e62d1dc3f583006f31ca0c9
parentc28a8082b25ce4ec94999e10a30c50d20bd44a25
gpu: lontium-lt9611: Fix NULL pointer dereference in lt9611_connector_init()

[ Upstream commit ef8886f321c5dab8124b9153d25afa2a71d05323 ]

A NULL check for bridge->encoder shows that it may be NULL, but it
already been dereferenced on all paths leading to the check.
812 if (!bridge->encoder) {

Dereference the pointer bridge->encoder.
810 drm_connector_attach_encoder(&lt9611->connector, bridge->encoder);

Signed-off-by: Zeng Jingxiang <linuszeng@tencent.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220727073119.1578972-1-zengjx95@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/bridge/lontium-lt9611.c