diff options
| author | Luis Chamberlain <mcgrof@kernel.org> | 2021-08-18 17:45:39 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-08-23 21:55:45 +0300 |
| commit | 92e7755ebc69233e25a2d1b760aeff536dc4016b (patch) | |
| tree | ce1dd2d6b85be78a211399474e6b4c39ead61102 | |
| parent | 614310c9c8ca15359f4e71a5bbd9165897b4d54e (diff) | |
| download | linux-92e7755ebc69233e25a2d1b760aeff536dc4016b.tar.xz | |
block: return errors from disk_alloc_events
Prepare for proper error handling in add_disk.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: split from a larger patch]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20210818144542.19305-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk.h | 2 | ||||
| -rw-r--r-- | block/disk-events.c | 7 |
2 files changed, 5 insertions, 4 deletions
diff --git a/block/blk.h b/block/blk.h index c9727dd56da7..bbbcc1a64a2d 100644 --- a/block/blk.h +++ b/block/blk.h @@ -362,7 +362,7 @@ int bio_add_hw_page(struct request_queue *q, struct bio *bio, struct request_queue *blk_alloc_queue(int node_id); -void disk_alloc_events(struct gendisk *disk); +int disk_alloc_events(struct gendisk *disk); void disk_add_events(struct gendisk *disk); void disk_del_events(struct gendisk *disk); void disk_release_events(struct gendisk *disk); diff --git a/block/disk-events.c b/block/disk-events.c index 7445b8ff2775..8d5496e7592a 100644 --- a/block/disk-events.c +++ b/block/disk-events.c @@ -444,17 +444,17 @@ module_param_cb(events_dfl_poll_msecs, &disk_events_dfl_poll_msecs_param_ops, /* * disk_{alloc|add|del|release}_events - initialize and destroy disk_events. */ -void disk_alloc_events(struct gendisk *disk) +int disk_alloc_events(struct gendisk *disk) { struct disk_events *ev; if (!disk->fops->check_events || !disk->events) - return; + return 0; ev = kzalloc(sizeof(*ev), GFP_KERNEL); if (!ev) { pr_warn("%s: failed to initialize events\n", disk->disk_name); - return; + return -ENOMEM; } INIT_LIST_HEAD(&ev->node); @@ -466,6 +466,7 @@ void disk_alloc_events(struct gendisk *disk) INIT_DELAYED_WORK(&ev->dwork, disk_events_workfn); disk->ev = ev; + return 0; } void disk_add_events(struct gendisk *disk) |