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authorLennert Buytenhek <buytenh@wantstofly.org>2010-01-10 08:07:53 -0500
committerJohn W. Linville <linville@tuxdriver.com>2010-01-12 14:20:56 -0500
commit678f415fdc534c0a806fce992e4c62df0eff19d2 (patch)
treeb3313257eca6f22d0ffdb65949c5b22e9c19fbe6 /net/mac80211/util.c
parent5e124bd5e00fcf54df555b368c2dafe6886f1df2 (diff)
mac80211: flush workqueue before calling driver ->stop() method
Since commit "mwl8k: handle station database update for AP's sta entry via ->sta_notify()", mwl8k every now and then gets a command timeout when ifconfig'ing a STA interface down. This turns out to be due to mwl8k_stop() being called while the work queue item that was scheduled by mwl8k_sta_notify() to remove the STA entry for the associated AP is still queued, and the former disables interrupts so that when the latter eventually runs, a command completion interrupt is never seen. Fix this by changing ieee80211_stop_device() so that the workqueue is flushed before drv_stop() is called, instead of doing it the other way around as is done now. (As ->stop() is allowed to sleep, there isn't any reason for drivers to queue work from within it.) Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/util.c')
-rw-r--r--net/mac80211/util.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 72a98e844718..a2ba6e29bd9a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1069,9 +1069,9 @@ void ieee80211_stop_device(struct ieee80211_local *local)
1069 ieee80211_led_radio(local, false); 1069 ieee80211_led_radio(local, false);
1070 1070
1071 cancel_work_sync(&local->reconfig_filter); 1071 cancel_work_sync(&local->reconfig_filter);
1072 drv_stop(local);
1073 1072
1074 flush_workqueue(local->workqueue); 1073 flush_workqueue(local->workqueue);
1074 drv_stop(local);
1075} 1075}
1076 1076
1077int ieee80211_reconfig(struct ieee80211_local *local) 1077int ieee80211_reconfig(struct ieee80211_local *local)