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authorMichal Kazior <michal.kazior@tieto.com>2012-06-08 10:55:44 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-07-19 08:58:59 -0700
commit738c88c1b8ebe16c3ecd1694871474b470275d82 (patch)
tree0304eeede8d31709ea9918b47c450e76fe743fdf
parent871d4f5e1d82cf0ad56ae076c8535004e7837416 (diff)
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cfg80211: check iface combinations only when iface is running
commit f8cdddb8d61d16a156229f0910f7ecfc7a82c003 upstream. 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> [Fixes regression introduced by cherry pick of 463454b5dbd8] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
-rw-r--r--net/wireless/util.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c
index b5b689070ba..0eb6cc0c77d 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -805,7 +805,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
ntype == NL80211_IFTYPE_P2P_CLIENT))
return -EBUSY;
- if (ntype != otype) {
+ if (ntype != otype && netif_running(dev)) {
err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr,
ntype);
if (err)