decnet: dn_dev: Remove an unnecessary label.

Remove the unnecessary label from dn_dev_ioctl() and make its error
handling simpler to read.

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net/decnet/dn_dev.c

@@ -462,7 +462,9 @@ int dn_dev_ioctl(unsigned int cmd, void __user *arg)
 	switch (cmd) {
 	case SIOCGIFADDR:
 		*((__le16 *)sdn->sdn_nodeaddr) = ifa->ifa_local;
-		goto rarok;
+		if (copy_to_user(arg, ifr, DN_IFREQ_SIZE))
+			ret = -EFAULT;
+		break;
 
 	case SIOCSIFADDR:
 		if (!ifa) {
@@ -485,10 +487,6 @@ int dn_dev_ioctl(unsigned int cmd, void __user *arg)
 	rtnl_unlock();
 
 	return ret;
-rarok:
-	if (copy_to_user(arg, ifr, DN_IFREQ_SIZE))
-		ret = -EFAULT;
-	goto done;
 }
 
 struct net_device *dn_dev_get_default(void)