[PATCH net-next] net: dm9051: Fix use after free in dm9051_loop_tx()

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

This code dereferences "skb" after calling dev_kfree_skb().

Fixes: 2dc95a4d30ed ("net: Add dm9051 driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/net/ethernet/davicom/dm9051.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/davicom/dm9051.c b/drivers/net/ethernet/davicom/dm9051.c
index a63d17e669a0..f6b5d2becf5e 100644
--- a/drivers/net/ethernet/davicom/dm9051.c
+++ b/drivers/net/ethernet/davicom/dm9051.c
@@ -850,13 +850,13 @@ static int dm9051_loop_tx(struct board_info *db)
 		if (skb) {
 			ntx++;
 			ret = dm9051_single_tx(db, skb->data, skb->len);
+			ndev->stats.tx_bytes += skb->len;
+			ndev->stats.tx_packets++;
 			dev_kfree_skb(skb);
 			if (ret < 0) {
 				db->bc.tx_err_counter++;
 				return 0;
 			}
-			ndev->stats.tx_bytes += skb->len;
-			ndev->stats.tx_packets++;
 		}
 
 		if (netif_queue_stopped(ndev) &&
-- 
2.20.1