mac80211: fix potential NULL dereference

Smatch complains that we could dereference skb later in the function.
It's probably unlikely, but we may as well return here and avoid it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[change summary]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9b13b8b24245..db343fa8033c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -49,7 +49,7 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
                         /* driver bug */
                         WARN_ON(1);
                         dev_kfree_skb(skb);
-                        skb = NULL;
+                        return NULL;
                 }
         }