From: Luis R. Rodriguez <lrodriguez@atheros.com>
Date: Wed, 13 May 2009 21:04:41 +0000 (-0400)
Subject: cfg80211: fix in nl80211_set_reg()
X-Git-Tag: v2.6.31-rc1~330^2~313^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=61405e97788b1bc4e7c5be5b4ec04a73fc11bac2;p=pandora-kernel.git

cfg80211: fix in nl80211_set_reg()

There is a race on access to last_request and its alpha2
through reg_is_valid_request() and us possibly processing
first another regulatory request on another CPU. We avoid
this improbably race by locking with the cfg80211_mutex as
we should have done in the first place. While at it add
the assert on locking on reg_is_valid_request().

Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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