xtensa: strlcpy is smart enough

strlcpy already accounts for the trailing zero in its length
computation, so there is no need to substract one to the buffer size.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/xtensa/platform-iss/network.c

@@ -251,7 +251,7 @@ static int tuntap_open(struct iss_net_private *lp)
 
 	memset(&ifr, 0, sizeof ifr);
 	ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
-	strlcpy(ifr.ifr_name, dev_name, sizeof ifr.ifr_name - 1);
+	strlcpy(ifr.ifr_name, dev_name, sizeof ifr.ifr_name);
 
 	if ((err = simc_ioctl(fd, TUNSETIFF, (void*) &ifr)) < 0) {
 		printk("Failed to set interface, returned %d "