From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Wed, 23 Jan 2013 14:15:57 +0000 (+0100)
Subject: cfg80211: fix channel check in cfg80211_can_use_iftype_chan
X-Git-Tag: v3.9-rc1~139^2~31^2^2~80^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=683d41ae6755e6ae297ec09603c229795ab9566e;p=pandora-kernel.git

cfg80211: fix channel check in cfg80211_can_use_iftype_chan

In commit "cfg80211: check radar interface combinations" a regression
was introduced which might lead to NULL dereference if the argument
chan = NULL, which might happen in IBSS/wext case (and probably
others).

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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