diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index b5198f52c24a5c1ee3f50f3b824a370c6522a94e..5eaffa2de9c5816399a2b455f25857fec46a9613 100644
--- a/tools/perf/tests/dso-data.c
+++ b/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) {