[PATCH net 3/5] macsec: don't put a NULL rxsa

[Sabrina Dubroca]

The "deliver:" path of macsec_handle_frame can be called with
rx_sa == NULL.  Check rx_sa != NULL before calling macsec_rxsa_put().

Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Sabrina Dubroca <s...@queasysnail.net>
Acked-by: Hannes Frederic Sowa <han...@stressinduktion.org>
---
 drivers/net/macsec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 5f3ea8026074..2a2136b7d324 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -1161,7 +1161,8 @@ deliver:
                            macsec_extra_len(macsec_skb_cb(skb)->has_sci));
        macsec_reset_skb(skb, secy->netdev);
 
-       macsec_rxsa_put(rx_sa);
+       if (rx_sa)
+               macsec_rxsa_put(rx_sa);
        count_rx(dev, skb->len);
 
        rcu_read_unlock();
-- 
2.8.0