From: Luis R. Rodriguez <lrodriguez@atheros.com>
Date: Wed, 13 May 2009 21:04:42 +0000 (-0400)
Subject: cfg80211: fix race between core hint and driver's custom apply
X-Git-Tag: v2.6.30-rc8~56^2~10^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5078b2e32ad4b1f753b1c837c15892202f753c97;p=pandora-kernel.git

cfg80211: fix race between core hint and driver's custom apply

Its possible for cfg80211 to have scheduled the work and for
the global workqueue to not have kicked in prior to a cfg80211
driver's regulatory hint or wiphy_apply_custom_regulatory().

Although this is very unlikely its possible and should fix
this race. When this race would happen you are expected to have
hit a null pointer dereference panic.

Cc: stable@kernel.org
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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