diff --git a/[refs] b/[refs]
index b8fb5a359058..034a04f46e2e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c81251e808fe2386e71990ecd49c408bb7cb4666
+refs/heads/master: f95e0818cbd026a8f2277895c65fcc9cc5b28cf6
diff --git a/trunk/tools/perf/tests/dso-data.c b/trunk/tools/perf/tests/dso-data.c
index b5198f52c24a..5eaffa2de9c5 100644
--- a/trunk/tools/perf/tests/dso-data.c
+++ b/trunk/tools/perf/tests/dso-data.c
@@ -26,6 +26,10 @@ static char *test_file(int size)
 	unsigned char *buf;
 
 	fd = mkstemp(templ);
+	if (fd < 0) {
+		perror("mkstemp failed");
+		return NULL;
+	}
 
 	buf = malloc(size);
 	if (!buf) {