diff --git a/[refs] b/[refs]
index ec07e5266dd9..98e375331350 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 83c7d09173fdb6b06b109e65895392db3e49ac9c
+refs/heads/master: 81b7854d52d35ed2353dd47033ae630d18322a2d
diff --git a/trunk/kernel/audit.c b/trunk/kernel/audit.c
index dca7b99615d2..e7bff8000d23 100644
--- a/trunk/kernel/audit.c
+++ b/trunk/kernel/audit.c
@@ -730,7 +730,7 @@ void audit_log_hex(struct audit_buffer *ab, const unsigned char *buf, size_t len
 
 void audit_log_untrustedstring(struct audit_buffer *ab, const char *string)
 {
-	const char *p = string;
+	const unsigned char *p = string;
 
 	while (*p) {
 		if (*p == '"' || *p == ' ' || *p < 0x20 || *p > 0x7f) {