From: Sven Neumann <s.neumann@raumfeld.com>
Date: Tue, 30 Aug 2011 21:38:53 +0000 (+0200)
Subject: cfg80211: hold reg_mutex when updating regulatory
X-Git-Tag: v3.2-rc1~129^2~254^2~79
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eac03e381957a05f3842ceb8de987a1025966ecf;p=pandora-kernel.git

cfg80211: hold reg_mutex when updating regulatory

The function wiphy_update_regulatory() uses the static variable
last_request and thus needs to be called with reg_mutex held.
This is the case for all users in reg.c, but the function was
exported for use by wiphy_register(), from where it is called
without the lock being held.

Fix this by making wiphy_update_regulatory() private and introducing
regulatory_update() as a wrapper that acquires and holds the lock.

Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Luis R. Rodriguez <mcgrof@gmail.com>
Cc: Daniel Mack <daniel@zonque.org>
Cc: linux-wireless@vger.kernel.org
Acked-by:  Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

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