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mac80211: fix configure_filter invocation after stop

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Since configure_filter can sleep now, any multicast
configuration needed to be postponed to a work struct.
This, however, lead to a problem that we could queue
the work, stop the device and then afterwards invoke
configure_filter which may lead to driver hangs and is
a bug. To fix this, we can just cancel the filter work
since it's unnecessary to do after stopping the hw.

Since there are various places that call drv_stop, and
two of them do very similar things, the code for them
can be put into a shared function at the same time.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reported-by: Lennert Buytenhek <buytenh@wantstofly.org>
Tested-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2009-08-20 20:02:20 +02:00
committed by John W. Linville
parent 5eb6ba83aa
commit 84f6a01ce0
4 changed files with 14 additions and 16 deletions
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6
net/mac80211/iface.c
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@ -552,11 +552,7 @@ static int ieee80211_stop(struct net_device *dev)
ieee80211_recalc_ps(local, -1);
if (local->open_count == 0) {
drv_stop(local);
ieee80211_led_radio(local, false);
flush_workqueue(local->workqueue);
ieee80211_stop_device(local);
tasklet_disable(&local->tx_pending_tasklet);
tasklet_disable(&local->tasklet);