[patch] mac80211: free sinfo on error path

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There is a missing kfree(sinfo) on error in sta_info_insert_finish().

Fixes: 5fe74014172d ('mac80211: avoid excessive stack usage in sta_info')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 6c198e6..1502efb 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -562,6 +562,7 @@ static int sta_info_insert_finish(struct sta_info *sta) __acquires(RCU)
  out_err:
 	mutex_unlock(&local->sta_mtx);
 	rcu_read_lock();
+	kfree(sinfo);
 	return err;
 }
 
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