From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 6 Nov 2012 10:29:13 +0000 (+0100)
Subject: fix bug in iftype_name()
X-Git-Tag: v3.8~16
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a66b3a357bf41a9672c6f3dd96d3a5ad33c9a621;p=thirdparty%2Fiw.git

fix bug in iftype_name()

If the kernel has been updated, and iw hasn't
but was recompiled, the function can return
NULL which isn't desirable. Fix it.
---

diff --git a/util.c b/util.c
index 869e0d6..2983e32 100644
--- a/util.c
+++ b/util.c
@@ -139,7 +139,7 @@ static char modebuf[100];
 
 const char *iftype_name(enum nl80211_iftype iftype)
 {
-	if (iftype <= NL80211_IFTYPE_MAX)
+	if (iftype <= NL80211_IFTYPE_MAX && ifmodes[iftype])
 		return ifmodes[iftype];
 	sprintf(modebuf, "Unknown mode (%d)", iftype);
 	return modebuf;