pch_gbe: fix bogus trylock conversion

Should have converted 'if (trylock)' to 'lock'.

Fixes: a6086a8937 ("drivers: net: remove NETDEV_TX_LOCKED")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

@@ -2137,7 +2137,7 @@ static int pch_gbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 	struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
 	unsigned long flags;
 
-	spin_trylock_irqsave(&tx_ring->tx_lock, flags);
+	spin_lock_irqsave(&tx_ring->tx_lock, flags);
 
 	if (unlikely(!PCH_GBE_DESC_UNUSED(tx_ring))) {
 		netif_stop_queue(netdev);