From 2fdd82bd8852ec8ebad5c69c45138da25c6f9273 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 12 Dec 2007 18:51:56 +0100 Subject: block: let elv_register() return void elv_register() always returns 0, and there isn't anything it does where it should return an error (the only error condition is so grave that it's handled with a BUG_ON). Signed-off-by: Adrian Bunk Signed-off-by: Jens Axboe --- block/as-iosched.c | 4 +++- block/cfq-iosched.c | 8 ++------ block/deadline-iosched.c | 4 +++- block/elevator.c | 3 +-- block/noop-iosched.c | 4 +++- include/linux/elevator.h | 2 +- 6 files changed, 13 insertions(+), 12 deletions(-) diff --git a/block/as-iosched.c b/block/as-iosched.c index 555cd6bf4ce..cb5e53b05c7 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -1464,7 +1464,9 @@ static struct elevator_type iosched_as = { static int __init as_init(void) { - return elv_register(&iosched_as); + elv_register(&iosched_as); + + return 0; } static void __exit as_exit(void) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 0b4a4790557..13553e015d7 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -2279,8 +2279,6 @@ static struct elevator_type iosched_cfq = { static int __init cfq_init(void) { - int ret; - /* * could be 0 on HZ < 1000 setups */ @@ -2292,11 +2290,9 @@ static int __init cfq_init(void) if (cfq_slab_setup()) return -ENOMEM; - ret = elv_register(&iosched_cfq); - if (ret) - cfq_slab_kill(); + elv_register(&iosched_cfq); - return ret; + return 0; } static void __exit cfq_exit(void) diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index a054eef8dff..342448c3d2d 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -467,7 +467,9 @@ static struct elevator_type iosched_deadline = { static int __init deadline_init(void) { - return elv_register(&iosched_deadline); + elv_register(&iosched_deadline); + + return 0; } static void __exit deadline_exit(void) diff --git a/block/elevator.c b/block/elevator.c index 446aea2a3cf..e452deb8039 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -960,7 +960,7 @@ void elv_unregister_queue(struct request_queue *q) __elv_unregister_queue(q->elevator); } -int elv_register(struct elevator_type *e) +void elv_register(struct elevator_type *e) { char *def = ""; @@ -975,7 +975,6 @@ int elv_register(struct elevator_type *e) def = " (default)"; printk(KERN_INFO "io scheduler %s registered%s\n", e->elevator_name, def); - return 0; } EXPORT_SYMBOL_GPL(elv_register); diff --git a/block/noop-iosched.c b/block/noop-iosched.c index 7563d8aa394..c23e0296965 100644 --- a/block/noop-iosched.c +++ b/block/noop-iosched.c @@ -101,7 +101,9 @@ static struct elevator_type elevator_noop = { static int __init noop_init(void) { - return elv_register(&elevator_noop); + elv_register(&elevator_noop); + + return 0; } static void __exit noop_exit(void) diff --git a/include/linux/elevator.h b/include/linux/elevator.h index e8f42133a61..639624b55fb 100644 --- a/include/linux/elevator.h +++ b/include/linux/elevator.h @@ -119,7 +119,7 @@ extern void elv_put_request(struct request_queue *, struct request *); /* * io scheduler registration */ -extern int elv_register(struct elevator_type *); +extern void elv_register(struct elevator_type *); extern void elv_unregister(struct elevator_type *); /* -- cgit v1.2.3