drm/amdgpu: only try again if we actually run into -ENOMEM

All other errors can't be fixed by using a different memory domain.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

@@ -371,12 +371,10 @@ static int amdgpu_cs_bo_validate(struct amdgpu_cs_parser *p,
 	p->bytes_moved += atomic64_read(&bo->adev->num_bytes_moved) -
 		initial_bytes_moved;
 
-	if (unlikely(r)) {
-		if (r != -ERESTARTSYS && domain != bo->allowed_domains) {
+	if (unlikely(r == -ENOMEM) && domain != bo->allowed_domains) {
 		domain = bo->allowed_domains;
 		goto retry;
 	}
-	}
 
 	return r;
 }