diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-21 16:03:40 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-21 16:03:40 -0700 |
| commit | 548453fd107f789f5f1bc2dc13cc432ceb3b5efd (patch) | |
| tree | dc5a62d49260d66b7390ef110113134e3bef9152 /block/blk-sysfs.c | |
| parent | 9fd91217b15751997cab35ad309b37b44eaa6774 (diff) | |
| parent | fb199746303a6bfd6121834ec9e810471185c530 (diff) | |
Merge branch 'for-2.6.26' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.26' of git://git.kernel.dk/linux-2.6-block:
block: fix blk_register_queue() return value
block: fix memory hotplug and bouncing in block layer
block: replace remaining __FUNCTION__ occurrences
Kconfig: clean up block/Kconfig help descriptions
cciss: fix warning oops on rmmod of driver
cciss: Fix race between disk-adding code and interrupt handler
block: move the padding adjustment to blk_rq_map_sg
block: add bio_copy_user_iov support to blk_rq_map_user_iov
block: convert bio_copy_user to bio_copy_user_iov
loop: manage partitions in disk image
cdrom: use kmalloced buffers instead of buffers on stack
cdrom: make unregister_cdrom() return void
cdrom: use list_head for cdrom_device_info list
cdrom: protect cdrom_device_info list by mutex
cdrom: cleanup hardcoded error-code
cdrom: remove ifdef CONFIG_SYSCTL
Diffstat (limited to 'block/blk-sysfs.c')
| -rw-r--r-- | block/blk-sysfs.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index 54d0db116153..fc41d83be22b 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -276,9 +276,12 @@ int blk_register_queue(struct gendisk *disk) struct request_queue *q = disk->queue; - if (!q || !q->request_fn) + if (WARN_ON(!q)) return -ENXIO; + if (!q->request_fn) + return 0; + ret = kobject_add(&q->kobj, kobject_get(&disk->dev.kobj), "%s", "queue"); if (ret < 0) @@ -300,7 +303,10 @@ void blk_unregister_queue(struct gendisk *disk) { struct request_queue *q = disk->queue; - if (q && q->request_fn) { + if (WARN_ON(!q)) + return; + + if (q->request_fn) { elv_unregister_queue(q); kobject_uevent(&q->kobj, KOBJ_REMOVE); |