From: Luis Chamberlain mcgrof@kernel.org
mainline inclusion from mainline-v5.16-rc1 commit 905705f083a936e49d5259e0bb539c53d5e0a9be category: bugfix bugzilla: 188733
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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We never checked for errors on add_disk() as this function returned void. Now that this is fixed, use the shiny new error handling.
Reviewed-by: Christoph Hellwig hch@lst.de Reviewed-by: Hannes Reinecke hare@suse.de Signed-off-by: Luis Chamberlain mcgrof@kernel.org Signed-off-by: Jens Axboe axboe@kernel.dk confilct: drivers/block/loop.c Signed-off-by: Zhong Jinghua zhongjinghua@huawei.com Signed-off-by: Li Nan linan122@huawei.com --- drivers/block/loop.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 066473c3556c..c64b22ce2bec 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -2177,10 +2177,15 @@ static int loop_add(struct loop_device **l, int i) disk->private_data = lo; disk->queue = lo->lo_queue; sprintf(disk->disk_name, "loop%d", i); - add_disk(disk); + err = add_disk_safe(disk); + if (err) + goto out_cleanup_disk; + *l = lo; return lo->lo_number;
+out_cleanup_disk: + blk_cleanup_disk(disk); out_cleanup_tags: blk_mq_free_tag_set(&lo->tag_set); out_free_idr: