From: Bob Copeland <me@bobcopeland.com>
Date: Wed, 3 Jun 2009 03:03:06 +0000 (-0400)
Subject: ath5k: disable beacon interrupt when interface is down
X-Git-Tag: v2.6.31-rc1~330^2~157^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=72828b1b3cabecfce4321877aa526a2bd21acf0c;p=pandora-kernel.git

ath5k: disable beacon interrupt when interface is down

When we remove the active interface, there's no need to continue
sending beacons; doing so would cause a null pointer deref in
ieee80211_beacon_get().  Disable the interrupt in remove_interface
and add a WARN_ON(!vif) in case there are other instances lurking.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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