drivers/net/wan: fix sparse warnings: make do-while a compound statement

Fix this sparse warnings:

drivers/net/wan/wanxl.c:414:3: warning: do-while statement is not a compound statement
drivers/net/wan/wanxl.c:441:3: warning: do-while statement is not a compound statement

Signed-off-by: Hannes Eder <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/wan/wanxl.c

···
 	writel(1 << (DOORBELL_TO_CARD_OPEN_0 + port->node), dbr);
 
 	timeout = jiffies + HZ;
-	do
+	do {
 		if (get_status(port)->open) {
 			netif_start_queue(dev);
 			return 0;
 		}
-	while (time_after(timeout, jiffies));
+	} while (time_after(timeout, jiffies));
 
 	printk(KERN_ERR "%s: unable to open port\n", dev->name);
 	/* ask the card to close the port, should it be still alive */
···
 	       port->card->plx + PLX_DOORBELL_TO_CARD);
 
 	timeout = jiffies + HZ;
-	do
+	do {
 		if (!get_status(port)->open)
 			break;
-	while (time_after(timeout, jiffies));
+	} while (time_after(timeout, jiffies));
 
 	if (get_status(port)->open)
 		printk(KERN_ERR "%s: unable to close port\n", dev->name);