From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 7 Jul 2009 01:43:02 +0000 (+0200)
Subject: mac80211_hwsim: avoid NULL access
X-Git-Tag: v2.6.31-rc3~40^2~5^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ff176674e75bdee9022dded415fb805f15700ad;p=pandora-kernel.git

mac80211_hwsim: avoid NULL access

There's a race condition -- started can be set to true
before channel is set due to the way mac80211 callbacks
currently work (->start should probably pass the channel
we would like to have initially). For now simply add a
check to hwsim to avoid dereferencing the NULL channel
pointer.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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