The commit title should user the drm/amd/display prefix. It might also be good to be more specific, like: drm/amd/display: Check dc_resource_state_construct succeeded On 11/11/22 02:14, Denis Arefev wrote: > 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. > Does this fix a test case? If so, please describe. > Signed-off-by: Denis Arefev <arefev@xxxxxxxxx> > --- > drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > 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); > + } I don't see how this won't leave the driver state in a mess. Are you sure this isn't a fatal error? Harry > > /* Before powering on DC we need to re-initialize DMUB. */ > r = dm_dmub_hw_init(adev);