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wlcore: don't switch channels on disconnected STA vifs

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Sending the FW a channel switch command on a disconnected
vif may result in a beacon loss event. Avoid this corner case.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arik Nemtsov 2014-07-11 03:01:36 +03:00 committed by John W. Linville
parent d8c5a48d27
commit e65628691f
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wireless/ti/wlcore/main.c
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@ -5192,6 +5192,10 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
if (unlikely(wl->state == WLCORE_STATE_OFF)) {
wl12xx_for_each_wlvif_sta(wl, wlvif) {
struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
continue;
ieee80211_chswitch_done(vif, false);
}
goto out;
@ -5207,6 +5211,9 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
wl12xx_for_each_wlvif_sta(wl, wlvif) {
unsigned long delay_usec;
if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
continue;
ret = wl->ops->channel_switch(wl, wlvif, ch_switch);
if (ret)
goto out_sleep;