diff options
| author | Brian Cavagnolo <brian@cozybit.com> | 2010-11-04 16:59:28 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-08 16:53:47 -0500 |
| commit | 352ffad646c0e0c5cf9ae8cea99710ee0d66ee27 (patch) | |
| tree | 41987fe0c7e00dfc3aa6871f1a51007e42f22c03 /net/mac80211/iface.c | |
| parent | fbb078fcd2fa83646ad9504d8e4c54a67b8729ae (diff) | |
| download | linux-352ffad646c0e0c5cf9ae8cea99710ee0d66ee27.tar.bz2 | |
mac80211: unset SDATA_STATE_OFFCHANNEL when cancelling a scan
For client STA interfaces, ieee80211_do_stop unsets the relevant
interface's SDATA_STATE_RUNNING state bit prior to cancelling an
interrupted scan. When ieee80211_offchannel_return is invoked as
part of cancelling the scan, it doesn't bother unsetting the
SDATA_STATE_OFFCHANNEL bit because it sees that the interface is
down. Normally this doesn't matter because when the client STA
interface is brought back up, it will probably issue a scan. But
in some cases (e.g., the user changes the interface type while it
is down), the SDATA_STATE_OFFCHANNEL bit will remain set. This
prevents the interface queues from being started. So we
cancel the scan before unsetting the SDATA_STATE_RUNNING bit.
Signed-off-by: Brian Cavagnolo <brian@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/iface.c')
| -rw-r--r-- | net/mac80211/iface.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index f9163b12c7f1..7aa85591dbe7 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -391,6 +391,9 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, u32 hw_reconf_flags = 0; int i; + if (local->scan_sdata == sdata) + ieee80211_scan_cancel(local); + clear_bit(SDATA_STATE_RUNNING, &sdata->state); /* @@ -523,9 +526,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, synchronize_rcu(); skb_queue_purge(&sdata->skb_queue); - if (local->scan_sdata == sdata) - ieee80211_scan_cancel(local); - /* * Disable beaconing here for mesh only, AP and IBSS * are already taken care of. |