diff -ruN busybox-1.3.1-old/miscutils/lock.c busybox-1.3.1/miscutils/lock.c
--- busybox-1.3.1-old/miscutils/lock.c 1970-01-01 01:00:00.000000000 +0100
+++ busybox-1.3.1/miscutils/lock.c 2006-12-28 03:11:36.000000000 +0100
-@@ -0,0 +1,136 @@
+@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ *
+static void exit_unlock(int sig)
+{
+ flock(fd, LOCK_UN);
-+ unlink(file);
+ exit(0);
+}
+