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From c83354ed38bbb4ebfa25f954d825594453b160c1 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 8 Jun 2012 10:55:44 +0200
Subject: [PATCH 050/109] 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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
net/wireless/util.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/wireless/util.c b/net/wireless/util.c
index d38815d..74d5292 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -813,7 +813,7 @@ 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)
--
1.7.7.6
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