ax25: remove unneeded NULL test in ax_xmit()

We get a static checker warning here on devel kernels:

	drivers/net/hamradio/mkiss.c:560 ax_xmit()
	warn: variable dereferenced before check 'skb' (see line 532)

It turns out that the NULL check can be deleted.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 5 deletions

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 17058c490b79..2ffbf13471d0 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -557,11 +557,9 @@ static netdev_tx_t ax_xmit(struct sk_buff *skb, struct net_device *dev)
         }
 
         /* We were not busy, so we are now... :-) */
-        if (skb != NULL) {
-                netif_stop_queue(dev);
-                ax_encaps(dev, skb->data, skb->len);
-                kfree_skb(skb);
-        }
+        netif_stop_queue(dev);
+        ax_encaps(dev, skb->data, skb->len);
+        kfree_skb(skb);
 
         return NETDEV_TX_OK;
 }