staging: ozwpan: remove redundant NULL check for devs

The "devs" is a pointer to g_net_dev in ozmain.c.
g_net_dev has a default value as empty string.
So "devs" cannot be NULL, removes NULL check for "devs".
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ozwpan/ozproto.c

@@ -765,7 +765,7 @@ static char *oz_get_next_device_name(char *s, char *dname, int max_size)
 int oz_protocol_init(char *devs)
 {
 	skb_queue_head_init(&g_rx_queue);
-	if (devs && (devs[0] == '*')) {
+	if (devs[0] == '*') {
 		oz_binding_add(NULL);
 	} else {
 		char d[32];