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-rw-r--r--net/wireless/nl80211.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5d29ed1f7c62..77102e66f1ea 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2478,6 +2478,14 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
params.channel_type))
return -EINVAL;
+ mutex_lock(&rdev->devlist_mtx);
+ err = cfg80211_can_use_chan(rdev, wdev, params.channel,
+ CHAN_MODE_SHARED);
+ mutex_unlock(&rdev->devlist_mtx);
+
+ if (err)
+ return err;
+
err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
if (!err) {
wdev->preset_chan = params.channel;