rt2x00: Fix sleep-while-atomic bug in powersaving code.
authorGertjan van Wingerde <gwingerde@gmail.com>
Sat, 12 Nov 2011 18:10:44 +0000 (19:10 +0100)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 15 Nov 2011 15:02:56 +0000 (10:02 -0500)
commited66ba472a742cd8df37d7072804b2111cdb1014
tree862306c7f75c736aef7f132a6523897f7d9a9f65
parentc18b7806e4f3373b2f296a65fb19251a3b49a532
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>
drivers/net/wireless/rt2x00/rt2x00.h
drivers/net/wireless/rt2x00/rt2x00dev.c