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>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index e54e79d4e2c1..92607ed25e2e 100644
--- 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;
         }