[PATCH] isdn: fix missing unregister_capi_driver

unregister_capi_driver() needs to be called in module cleanup.
(It fixes data corruption by reloading t1isa driver)

Cc: Kai Germaschewski <kai.germaschewski@gmx.de>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/isdn/hardware/avm/t1isa.c b/drivers/isdn/hardware/avm/t1isa.c
index e47c60b0a8ec..c925020fe9b7 100644
--- a/drivers/isdn/hardware/avm/t1isa.c
+++ b/drivers/isdn/hardware/avm/t1isa.c
@@ -584,6 +584,7 @@ static void __exit t1isa_exit(void)
 {
         int i;
 
+        unregister_capi_driver(&capi_driver_t1isa);
         for (i = 0; i < MAX_CARDS; i++) {
                 if (!io[i])
                         break;