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| author | Zeng Jingxiang <linuszeng@tencent.com> | 2022-07-27 10:31:19 +0300 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-08-08 12:22:14 +0300 |
| commit | ef8886f321c5dab8124b9153d25afa2a71d05323 (patch) | |
| tree | 318c2b45e3bbf4a357039616c88a2259a58117cc | |
| parent | de40c281fe0b6babf3d1a25e034525a23e125d0c (diff) | |
| download | linux-ef8886f321c5dab8124b9153d25afa2a71d05323.tar.xz | |
gpu: lontium-lt9611: Fix NULL pointer dereference in lt9611_connector_init()
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(<9611->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
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt9611.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 8a60e83482a0..5fccacc159f0 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -813,13 +813,14 @@ static int lt9611_connector_init(struct drm_bridge *bridge, struct lt9611 *lt961 drm_connector_helper_add(<9611->connector, <9611_bridge_connector_helper_funcs); - drm_connector_attach_encoder(<9611->connector, bridge->encoder); if (!bridge->encoder) { DRM_ERROR("Parent encoder object not found"); return -ENODEV; } + drm_connector_attach_encoder(<9611->connector, bridge->encoder); + return 0; } |