From: Amit Khatri <amit.khatri@samsung.com>
Date: Thu, 26 Nov 2015 09:10:19 +0000 (+0530)
Subject: iw: don't use NULL pointer in nla_nest_end()
X-Git-Tag: v4.7~18
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=96fa73c7564fa7eba89cd78a24f20acd68d2f55f;p=thirdparty%2Fiw.git

iw: don't use NULL pointer in nla_nest_end()

Fix a crash if nla_nest_start() fails here.

Signed-off-by: Amit Khatri <amit.khatri@samsung.com>
Signed-off-by: Rahul Jain <rahul.jain@samsung.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/wowlan.c b/wowlan.c
index c30eab7..e0cf316 100644
--- a/wowlan.c
+++ b/wowlan.c
@@ -180,7 +180,8 @@ static int wowlan_parse_tcp_file(struct nl_msg *msg, const char *fn)
 	err = -ENOBUFS;
  close:
 	fclose(f);
-	nla_nest_end(msg, tcp);
+	if (tcp)
+		nla_nest_end(msg, tcp);
 	return err;
 }