--- a/sys/dev/drm/amd/amdgpu/amdgpu_cs.c
+++ b/sys/dev/drm/amd/amdgpu/amdgpu_cs.c
@@ -112,7 +112,7 @@
 	int ret;
 
 	if (cs->in.num_chunks == 0)
-		return 0;
+		return -EINVAL;
 
 	chunk_array = kmalloc_array(cs->in.num_chunks, sizeof(uint64_t), GFP_KERNEL);
 	if (!chunk_array)