diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
index 506aaae0f897..d43b0ebaf862 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
@@ -479,8 +479,8 @@ int amdgpu_userq_signal_ioctl(struct drm_device *dev, void *data,
 		return -ENOTSUPP;
 
 	num_syncobj_handles = args->num_syncobj_handles;
-	syncobj_handles = memdup_user(u64_to_user_ptr(args->syncobj_handles),
-				      size_mul(sizeof(u32), num_syncobj_handles));
+	syncobj_handles = memdup_array_user(u64_to_user_ptr(args->syncobj_handles),
+					    num_syncobj_handles, sizeof(u32));
 	if (IS_ERR(syncobj_handles))
 		return PTR_ERR(syncobj_handles);