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drm/amdgpu: Fix potential NULL dereference

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[ Upstream commit 0be7ed8e7e ]

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: 7554886daa ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Luben Tuikov 2023-01-04 17:09:02 -05:00 committed by Greg Kroah-Hartman
parent cd57d5e5e2
commit f2faf0699a
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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@ -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;
}