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| author |   Luben Tuikov <luben.tuikov@amd.com> | 2023-01-04 17:09:02 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2023-01-09 16:49:43 -0500 |
| commit | 0be7ed8e7eb15282b5d0f6fdfea884db594ea9bf (patch) | |
| tree | 0e0d0003cdbe0003dfa36b5a9339f3a7a874c255 | |
| parent | drm/amd/pm: add the missing mapping for PPT feature on SMU13.0.0 and 13.0.7 (diff) | |
| download | linux-rng-0be7ed8e7eb15282b5d0f6fdfea884db594ea9bf.tar.xz linux-rng-0be7ed8e7eb15282b5d0f6fdfea884db594ea9bf.zip | |
drm/amdgpu: Fix potential NULL dereference
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@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: AMD Graphics <amd-gfx@lists.freedesktop.org>
Cc: Dan Carpenter <error27@gmail.com>
Cc: kernel test robot <lkp@intel.com>
Fixes: 7554886daa31ea ("drm/amdgpu: Fix size validation for non-exclusive domains (v4)")
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 5 |
1 files 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 4e684c2afc70..25a68d8888e0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -470,8 +470,9 @@ 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; } |