isdn/capi: unregister capictr notifier after init failure

capidrv_init() could leave capictr notifier dangling after init
failure.  Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jan Kiszka <jan.kiszka@web.de>

diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index e54e79d..92607ed 100644 (file)
--- a/drivers/isdn/capi/capidrv.c
+++ b/drivers/isdn/capi/capidrv.c
@@ -2297,6 +2297,7 @@ static int __init capidrv_init(void)
 
        errcode = capi20_get_profile(0, &profile);
        if (errcode != CAPI_NOERROR) {
+               unregister_capictr_notifier(&capictr_nb);
                capi20_release(&global.ap);
                return -EIO;
        }