Message ID | 20221206094303.29282-1-arefev@swemel.ru (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | | expand |
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 0f7749e9424d..529483997154 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1960,7 +1960,9 @@ static int dm_resume(void *handle) dc_release_state(dm_state->context); dm_state->context = dc_create_state(dm->dc); /* TODO: Remove dc_state->dccg, use dc->dccg directly. */ - dc_resource_state_construct(dm->dc, dm_state->context); + if (dm_state->context) { + dc_resource_state_construct(dm->dc, dm_state->context); + } /* Before powering on DC we need to re-initialize DMUB. */ r = dm_dmub_hw_init(adev);
Date: Thu, 10 Nov 2022 16:47:26 +0300 Subject: [PATCH] drm/amdgpu/display: Add pointer check Return value of a function 'dc_create_state' is dereferenced at amdgpu_dm.c:2027 without checking for null Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Denis Arefev <arefev@swemel.ru> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)