diff options
| author | Bob Copeland <me@bobcopeland.com> | 2009-07-29 10:13:03 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-08-04 22:43:23 +0200 |
| commit | 97af743207466ff8b477e14bfb7af0ba2c93375b (patch) | |
| tree | 9fc275981b34346284c1aedd370c54854f5369ae /net/mac80211/iface.c | |
| parent | rt2x00: Fix build error when crypto support is disabled (diff) | |
| download | linux-97af743207466ff8b477e14bfb7af0ba2c93375b.tar.xz linux-97af743207466ff8b477e14bfb7af0ba2c93375b.zip | |
mac80211: disable beacons before removing the associated interface
When downing interfaces, it's a good idea to tell the driver to
stop sending beacons; that way the driver doesn't need special
code in ops->remove_interface() when it should already handle the
case in bss_info_changed().
This fixes a potential crash with at least ath5k since the vif
pointer will be nullified while beacon interrupts are still active.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/iface.c')
| -rw-r--r-- | net/mac80211/iface.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 6c655b6547fb..6614d4ff273d 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -522,6 +522,16 @@ static int ieee80211_stop(struct net_device *dev) ieee80211_scan_completed(&local->hw, true); } + /* + * Disable beaconing for AP and mesh, IBSS can't + * still be joined to a network at this point. + */ + if (sdata->vif.type == NL80211_IFTYPE_AP || + sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { + ieee80211_bss_info_change_notify(sdata, + BSS_CHANGED_BEACON_ENABLED); + } + conf.vif = &sdata->vif; conf.type = sdata->vif.type; conf.mac_addr = dev->dev_addr; |