From: Amit Khatri <amit.khatri@samsung.com>
Date: Thu, 13 Aug 2015 10:26:59 +0000 (+0000)
Subject: iw: avoid passing NULL to nla_data()
X-Git-Tag: v4.3~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=572e47a34d6d33d89d5d4e4fe675541cd8e8acfb;p=thirdparty%2Fiw.git

iw: avoid passing NULL to nla_data()

The attr pointer is checked for NULL but the function
doesn't handle it appropriately - fix that.

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/event.c b/event.c
index 5fb5afc..5d0bfde 100644
--- a/event.c
+++ b/event.c
@@ -49,8 +49,10 @@ static void print_frame(struct print_event_args *args, struct nlattr *attr)
 	char macbuf[6*3];
 	uint16_t tmp;
 
-	if (!attr)
+	if (!attr) {
 		printf(" [no frame]");
+		return;
+	}
 
 	frame = nla_data(attr);
 	len = nla_len(attr);