From: Gertjan van Wingerde <gwingerde@gmail.com>
Date: Sat, 12 Nov 2011 18:10:44 +0000 (+0100)
Subject: rt2x00: Fix sleep-while-atomic bug in powersaving code.
X-Git-Tag: v3.2-rc3~25^2~5^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed66ba472a742cd8df37d7072804b2111cdb1014;p=pandora-kernel.git

rt2x00: Fix sleep-while-atomic bug in powersaving code.

The generic powersaving code that determines after reception of a frame
whether the device should go back to sleep or whether is could stay
awake was calling rt2x00lib_config directly from RX tasklet context.
On a number of the devices this call can actually sleep, due to having
to confirm that the sleeping commands have been executed successfully.

Fix this by moving the call to rt2x00lib_config to a workqueue call.

This fixes bug https://bugzilla.redhat.com/show_bug.cgi?id=731672

Tested-by: Tomas Trnka <tomastrnka@gmx.com>
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: <stable@vger.kernel.org>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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