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mac80211: abort scan_work immediately when the device goes down

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As long as no delay is required b/w channel change, scan work
is proceeding without scheduling a new work. In such case, we
can not abort scan work when the card was unplugged. This patch
completes the scanning immediately whenever the device goes down.

Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2011-05-14 09:43:28 +05:30 committed by John W. Linville
parent 8e621fc90b
commit c29acf2010
2 changed files with 7 additions and 2 deletions
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4
net/mac80211/iface.c
View file

@ -384,11 +384,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
int i;
enum nl80211_channel_type orig_ct;
clear_bit(SDATA_STATE_RUNNING, &sdata->state);
if (local->scan_sdata == sdata)
ieee80211_scan_cancel(local);
clear_bit(SDATA_STATE_RUNNING, &sdata->state);
/*
* Stop TX on this interface first.
*/

5
net/mac80211/scan.c
View file

@ -719,6 +719,11 @@ void ieee80211_scan_work(struct work_struct *work)
* without scheduling a new work
*/
do {
if (!ieee80211_sdata_running(sdata)) {
aborted = true;
goto out_complete;
}
switch (local->next_scan_state) {
case SCAN_DECISION:
/* if no more bands/channels left, complete scan */