From: Luben Tuikov <luben.tuikov@xxxxxxx>
[ Upstream commit 0be7ed8e7eb15282b5d0f6fdfea884db594ea9bf ]
Fix potential NULL dereference, in the case when "man", the resource manager
might be NULL, when/if we print debug information.
Cc: Alex Deucher <Alexander.Deucher@xxxxxxx>
Cc: Christian König <christian.koenig@xxxxxxx>
Cc: AMD Graphics <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>
Cc: Dan Carpenter <error27@xxxxxxxxx>
Cc: kernel test robot <lkp@xxxxxxxxx>
Fixes: 7554886daa31ea ("drm/amdgpu: Fix size validation for non-exclusive domains (v4)")
Signed-off-by: Luben Tuikov <luben.tuikov@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 3be3cba3a16d..cfd78c4a45ba 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -468,8 +468,9 @@ static bool amdgpu_bo_validate_size(struct amdgpu_device *adev,
return true;
fail:
- DRM_DEBUG("BO size %lu > total memory in domain: %llu\n", size,
- man->size);
+ if (man)
+ DRM_DEBUG("BO size %lu > total memory in domain: %llu\n", size,
+ man->size);
return false;
}
--
2.35.1
