Gigaset: permit module unload

Fix the initialization and reference counting of the Gigaset driver modules
so that they can be unloaded when they are not actually in use.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Hansjoerg Lipp <hjlipp@web.de>
Cc: Greg KH <gregkh@suse.de>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 92986a5d4055..f365993161fc 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -435,6 +435,7 @@ struct cardstate {
         unsigned minor_index;
         struct device *dev;
         struct device *tty_dev;
+        unsigned flags;
 
         const struct gigaset_ops *ops;
 
@@ -539,7 +540,6 @@ struct gigaset_driver {
         unsigned minor;
         unsigned minors;
         struct cardstate *cs;
-        unsigned *flags;
         int blocked;
 
         const struct gigaset_ops *ops;
@@ -767,10 +767,6 @@ void gigaset_freedriver(struct gigaset_driver *drv);
 void gigaset_debugdrivers(void);
 struct cardstate *gigaset_get_cs_by_tty(struct tty_struct *tty);
 struct cardstate *gigaset_get_cs_by_id(int id);
-
-/* For drivers without fixed assignment device<->cardstate (usb) */
-struct cardstate *gigaset_getunassignedcs(struct gigaset_driver *drv);
-void gigaset_unassign(struct cardstate *cs);
 void gigaset_blockdriver(struct gigaset_driver *drv);
 
 /* Allocate and initialize card state. Calls hardware dependent
@@ -789,7 +785,7 @@ int gigaset_start(struct cardstate *cs);
 void gigaset_stop(struct cardstate *cs);
 
 /* Tell common.c that the driver is being unloaded. */
-void gigaset_shutdown(struct cardstate *cs);
+int gigaset_shutdown(struct cardstate *cs);
 
 /* Tell common.c that an skb has been sent. */
 void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb);