From: Neil Brown <neilb@suse.de>
Date: Thu, 15 May 2008 05:50:45 +0000 (+1000)
Subject: Fix possible NULL dereference in super_by_fd
X-Git-Tag: mdadm-2.6.5~6
X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=commitdiff_plain;h=3b0896f89988923c314cfb07454dde23b1b401fc

Fix possible NULL dereference in super_by_fd
---

diff --git a/util.c b/util.c
index 108f3c16..1ad6fd0d 100644
--- a/util.c
+++ b/util.c
@@ -757,7 +757,8 @@ struct supertype *super_by_fd(int fd)
 
 	if (sra)
 		sysfs_free(sra);
-	st->sb = NULL;
+	if (st)
+		st->sb = NULL;
 	return st;
 }