diff --git a/[refs] b/[refs]
index e52920f751e2..6f54659a23e9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5c98fc0360437327e4034ecfe8b818ad82622100
+refs/heads/master: 1b9bc22d71c75d4145688428c92c5123bd8697e3
diff --git a/trunk/scripts/kernel-doc b/trunk/scripts/kernel-doc
index e4fa8d9568ba..8cf528b5e65a 100755
--- a/trunk/scripts/kernel-doc
+++ b/trunk/scripts/kernel-doc
@@ -334,7 +334,7 @@ while ($ARGV[0] =~ m/^-(.*)/) {
 
 # get kernel version from env
 sub get_kernel_version() {
-    my $version;
+    my $version = 'unknown kernel version';
 
     if (defined($ENV{'KERNELVERSION'})) {
 	$version = $ENV{'KERNELVERSION'};