diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c
index 688525dd4aee599548c52502168b3f04f62388fb..367e727a8f93ed24aaea8469c3af42dcc768df41 100644
--- a/drivers/firmware/qcom_scm-64.c
+++ b/drivers/firmware/qcom_scm-64.c
@@ -158,7 +158,7 @@ static int qcom_scm_call(struct device *dev, u32 svc_id, u32 cmd_id,
 		kfree(args_virt);
 	}
 
-	if (res->a0 < 0)
+	if ((long)res->a0 < 0)
 		return qcom_scm_remap_error(res->a0);
 
 	return 0;