diff options
| author | Simon Wunderlich <sw@simonwunderlich.de> | 2013-11-21 18:19:51 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-12-02 11:51:54 +0100 |
| commit | e487eaeb076a44c69dc61348cbc903151bb8fcbd (patch) | |
| tree | 715d57f18ec0f3e3565a711f43248a3b8c8a42eb /include/net | |
| parent | 7ca133bc7f9dd5cee2b469eb917bd352be80a690 (diff) | |
cfg80211/mac80211/ath6kl: acquire wdev lock outside ch_switch_notify
The channel switch notification should be sent under the
wdev/sdata-lock, preferably in the same moment as the channel change
happens, to avoid races by other callers (e.g. start/stop_ap).
This also adds the previously missing sdata_lock protection in
csa_finalize_work.
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/cfg80211.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 6c2bc329a900..e9abc7b536cd 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -4286,7 +4286,8 @@ bool cfg80211_reg_can_beacon(struct wiphy *wiphy, * @dev: the device which switched channels * @chandef: the new channel definition * - * Acquires wdev_lock, so must only be called from sleepable driver context! + * Caller must acquire wdev_lock, therefore must only be called from sleepable + * driver context! */ void cfg80211_ch_switch_notify(struct net_device *dev, struct cfg80211_chan_def *chandef); |