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cfg80211: check iface combinations only when iface is running

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Don't validate interface combinations on a stopped
interface. Otherwise we might end up being able to
create a new interface with a certain type, but
won't be able to change an existing interface
into that type.

This also skips some other functions when
interface is stopped and changing interface type.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michal Kazior 2012-06-08 10:55:44 +02:00 committed by Johannes Berg
parent d13e141481
commit f8cdddb8d6
1 changed files with 1 additions and 1 deletions
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2
net/wireless/util.c
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@ -804,7 +804,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
ntype == NL80211_IFTYPE_P2P_CLIENT)) ntype == NL80211_IFTYPE_P2P_CLIENT))
return -EBUSY; return -EBUSY;
if (ntype != otype) { if (ntype != otype && netif_running(dev)) {
err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr, err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr,
ntype); ntype);
if (err) if (err)