gigaset: fix error return code

gigaset_register_to_LL() is expected to print a message and return 0
on failure. Make it do so consistently.

Impact: error handling bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c
index 69a702f0db93..9b22f9cf2f33 100644
--- a/drivers/isdn/gigaset/i4l.c
+++ b/drivers/isdn/gigaset/i4l.c
@@ -544,11 +544,11 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
 
         gig_dbg(DEBUG_ANY, "Register driver capabilities to LL");
 
-        //iif->id[sizeof(iif->id) - 1]=0;
-        //strncpy(iif->id, isdnid, sizeof(iif->id) - 1);
         if (snprintf(iif->id, sizeof iif->id, "%s_%u", isdnid, cs->minor_index)
-            >= sizeof iif->id)
-                return -ENOMEM; //FIXME EINVAL/...??
+            >= sizeof iif->id) {
+                pr_err("ID too long: %s\n", isdnid);
+                return 0;
+        }
 
         iif->owner = THIS_MODULE;
         iif->channels = cs->channels;
@@ -568,8 +568,10 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
         iif->rcvcallb_skb = NULL;               /* Will be set by LL */
         iif->statcallb = NULL;                  /* Will be set by LL */
 
-        if (!register_isdn(iif))
+        if (!register_isdn(iif)) {
+                pr_err("register_isdn failed\n");
                 return 0;
+        }
 
         cs->myid = iif->channels;               /* Set my device id */
         return 1;