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| author | Haowen Bai <baihaowen@meizu.com> | 2022-03-24 17:27:14 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-31 23:05:53 -0400 |
| commit | 3222a81148ca273af66cb67f8445114bc633e747 (patch) | |
| tree | cc6935219b7d54d7ac185afb9353b32f4538867a /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | |
| parent | c4af42b4eb5beb6f5ae96b5be786862bbb9cfb16 (diff) | |
| download | linux-3222a81148ca273af66cb67f8445114bc633e747.tar.gz linux-3222a81148ca273af66cb67f8445114bc633e747.tar.bz2 linux-3222a81148ca273af66cb67f8445114bc633e747.zip | |
drm/amd/display: Fix pointer dereferenced before checking
The pointer edid_buf is dereferencing pointer edid before edid is being
null checked. Fix this by assigning edid->raw_edid to edid_buf only if
edid is not NULL, otherwise just NULL.
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index f5f39984702f..28cf24f6ab32 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -90,7 +90,7 @@ enum dc_edid_status dm_helpers_parse_edid_caps( { struct amdgpu_dm_connector *aconnector = link->priv; struct drm_connector *connector = &aconnector->base; - struct edid *edid_buf = (struct edid *) edid->raw_edid; + struct edid *edid_buf = edid ? (struct edid *) edid->raw_edid : NULL; struct cea_sad *sads; int sad_count = -1; int sadb_count = -1; |