diff --git a/kernel/core_hook.c b/kernel/core_hook.c
index e76262b4..45603607 100644
--- a/kernel/core_hook.c
+++ b/kernel/core_hook.c
@@ -617,8 +617,7 @@ do_umount:
 	// check old process's selinux context, if it is not zygote, ignore it!
 	// because some su apps may setuid to untrusted_app but they are in global mount namespace
 	// when we umount for such process, that is a disaster!
-	bool is_zygote_child = is_zygote(old->security);
-	if (!is_zygote_child) {
+	if (!is_zygote(old->security)) {
 		pr_info("handle umount ignore non zygote child: %d\n",
 			current->pid);
 		return 0;