[patch] ser_gigaset: return -ENOMEM on error instead of success

[Dan Carpenter]

If we can't allocate the resources in gigaset_initdriver() then we
should return -ENOMEM instead of zero.

Fixes: 2869b23e4b95 ("[PATCH] drivers/isdn/gigaset: new M101 driver (v2)")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
Ancient code.

diff --git a/drivers/isdn/gigaset/ser-gigaset.c 
b/drivers/isdn/gigaset/ser-gigaset.c
index d1f8ab915b15..b90776ef56ec 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -755,8 +755,10 @@ static int __init ser_gigaset_init(void)
        driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
                                    GIGASET_MODULENAME, GIGASET_DEVNAME,
                                    &ops, THIS_MODULE);
-       if (!driver)
+       if (!driver) {
+               rc = -ENOMEM;
                goto error;
+       }
 
        rc = tty_register_ldisc(N_GIGASET_M101, &gigaset_ldisc);
        if (rc != 0) {