wifi: mac80211: fix memory leak in ieee80211_if_add()

When register_netdevice() failed in ieee80211_if_add(), ndev->tstats
isn't released. Fix it.

Fixes: 5a490510ba5f ("mac80211: use per-CPU TX/RX statistics")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20221117064500.319983-1-shaozhengchao@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 7c4ce71..a578292 100644 (file)
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -2195,6 +2195,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
                ret = cfg80211_register_netdevice(ndev);
                if (ret) {
+                       ieee80211_if_free(ndev);
                        free_netdev(ndev);
                        return ret;
                }