drm/amdgpu: Fix potential NULL dereference

From Luben Tuikov
f2faf0699af78968a27ca154bf76e94247f8c471 in linux-6.1.y/6.1.7
0be7ed8e7eb15282b5d0f6fdfea884db594ea9bf in mainline linux

diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_object.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_object.c
index 80e4bea..edc3cbd 100644 (file)
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_object.c
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_object.c
@@ -469,8 +469,9 @@ 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;
 }