Wireless: nl80211, fix lock imbalance

Don't forget to unlock cfg80211_mutex in one fail path of
nl80211_set_wiphy.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 241bddd..43bdb13 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -447,6 +447,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 
        rdev = __cfg80211_drv_from_info(info);
        if (IS_ERR(rdev)) {
+               mutex_unlock(&cfg80211_mutex);
                result = PTR_ERR(rdev);
                goto unlock;
        }