[PATCH] Fix capi reload by unregistering the correct major

I am having the bug FATAL: Error inserting capi ([..]/capi.ko): Device or
resource busy when I try to reload capi after loading it.  in dmesg:
capi20: unable to get major 68

Fix the issue which is caused by setting the major to zero when registering
the chrdev succeeded.

(akpm: this means that we can again not use `major=0' (dynamic major
allocation) for this driver).

Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/isdn/capi/capi.c

@@ -1499,7 +1499,6 @@ static int __init capi_init(void)
 		printk(KERN_ERR "capi20: unable to get major %d\n", capi_major);
 		return major_ret;
 	}
-	capi_major = major_ret;
 	capi_class = class_create(THIS_MODULE, "capi");
 	if (IS_ERR(capi_class)) {
 		unregister_chrdev(capi_major, "capi20");