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mac80211: release the channel in error path in start_ap 

commit 0297ea17bf7879fb5846fafd1be4c0471e72848d upstream.

When the driver cannot start the AP or when the assignement
of the beacon goes wrong, we need to unassign the vif.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Emmanuel Grumbach 2014-01-27 11:07:42 +02:00 committed by Greg Kroah-Hartman
parent 7cde93f4f7
commit bd5bcc09d8
1 changed files with 4 additions and 1 deletions
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5
net/mac80211/cfg.c
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@ -975,8 +975,10 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
IEEE80211_P2P_OPPPS_ENABLE_BIT;
err = ieee80211_assign_beacon(sdata, &params->beacon);
if (err < 0)
if (err < 0) {
ieee80211_vif_release_channel(sdata);
return err;
}
changed |= err;
err = drv_start_ap(sdata->local, sdata);
@ -985,6 +987,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
if (old)
kfree_rcu(old, rcu_head);
RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
ieee80211_vif_release_channel(sdata);
return err;
}