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authorMichal Kazior <michal.kazior@tieto.com>2012-06-29 12:47:08 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-06-29 13:39:19 +0200
commite4e32459c2daea59516da59999706b357e6eb480 (patch)
tree110014ac72ebcf7aed16caa0fa83da75e319fa86 /net/wireless/ibss.c
parentd4e50c5917e110451ced8f8de594cea858791f37 (diff)
downloadlinux-e4e32459c2daea59516da59999706b357e6eb480.tar.gz
cfg80211: respect iface combinations when starting operation
devlist_mtx locking is changed to accomodate changes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/ibss.c')
-rw-r--r--net/wireless/ibss.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index b90fd86b2d18..ca5672f6ee2f 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -118,6 +118,16 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 	wdev->wext.ibss.channel = params->channel;
 #endif
 	wdev->sme_state = CFG80211_SME_CONNECTING;
+
+	err = cfg80211_can_use_chan(rdev, wdev, params->channel,
+				    params->channel_fixed
+				    ? CHAN_MODE_SHARED
+				    : CHAN_MODE_EXCLUSIVE);
+	if (err) {
+		wdev->connect_keys = NULL;
+		return err;
+	}
+
 	err = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
 	if (err) {
 		wdev->connect_keys = NULL;