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-rw-r--r--block/blk.h2
-rw-r--r--block/disk-events.c7
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)