diff --git a/[refs] b/[refs]
index 3aa705916ab3..21807153f4a5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ae07b63f4b6728e1f98aa5c5416cfc1280f59f51
+refs/heads/master: 7eac7e9e726c1b136bd7e0ad6671ce315f48bb18
diff --git a/trunk/tools/perf/util/header.c b/trunk/tools/perf/util/header.c
index 95a44bcfc2dc..b92a457ca32e 100644
--- a/trunk/tools/perf/util/header.c
+++ b/trunk/tools/perf/util/header.c
@@ -185,6 +185,8 @@ static void do_read(int fd, void *buf, size_t size)
 
 		if (ret < 0)
 			die("failed to read");
+		if (ret == 0)
+			die("failed to read: missing data");
 
 		size -= ret;
 		buf += ret;