isdn/gigaset: report ISDN4Linux interface only once

Move the "ISDN4Linux interface" message from device registration,
where it is emitted for each device, to driver registration, where
it is emitted only once, for consistency with the CAPI variant.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/gigaset/i4l.c

@@ -624,8 +624,6 @@ int gigaset_isdn_regdev(struct cardstate *cs, const char *isdnid)
 {
 	isdn_if *iif;
 
-	pr_info("ISDN4Linux interface\n");
-
 	iif = kmalloc(sizeof *iif, GFP_KERNEL);
 	if (!iif) {
 		pr_err("out of memory\n");
@@ -684,6 +682,7 @@ void gigaset_isdn_unregdev(struct cardstate *cs)
  */
 void gigaset_isdn_regdrv(void)
 {
+	pr_info("ISDN4Linux interface\n");
 	/* nothing to do */
 }