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authorGertjan van Wingerde <gwingerde@gmail.com>2011-11-12 19:10:44 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-11-15 10:02:56 -0500
commited66ba472a742cd8df37d7072804b2111cdb1014 (patch)
tree862306c7f75c736aef7f132a6523897f7d9a9f65 /drivers/net/wireless/rt2x00/rt2x00.h
parentc18b7806e4f3373b2f296a65fb19251a3b49a532 (diff)
downloadlinux-ed66ba472a742cd8df37d7072804b2111cdb1014.tar.gz
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>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00.h')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 2ec5c00235e6..99ff12d0c29d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -943,6 +943,7 @@ struct rt2x00_dev {
* Powersaving work
*/
struct delayed_work autowakeup_work;
+ struct work_struct sleep_work;
/*
* Data queue arrays for RX, TX, Beacon and ATIM.