Commit 15733754 authored by Luis Chamberlain's avatar Luis Chamberlain Committed by Jens Axboe
Browse files

z2ram: add error handling support for add_disk() 



We never checked for errors on add_disk() as this function
returned void. Now that this is fixed, use the shiny new
error handling. Only the disk is cleaned up inside
z2ram_register_disk() as the caller deals with the rest.

Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarLuis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20211103230437.1639990-8-mcgrof@kernel.org


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 5a192ccc

drivers/block/z2ram.c

+5 −2
Original line number Diff line number Diff line
@@ -318,6 +318,7 @@ static const struct blk_mq_ops z2_mq_ops = { 
static int z2ram_register_disk(int minor)

{

	struct gendisk *disk;

	int err;



	disk = blk_mq_alloc_disk(&tag_set, NULL);

	if (IS_ERR(disk))
@@ -333,8 +334,10 @@ static int z2ram_register_disk(int minor) 
		sprintf(disk->disk_name, "z2ram");



	z2ram_gendisk[minor] = disk;

	add_disk(disk);

	return 0;

	err = add_disk(disk);

	if (err)

		blk_cleanup_disk(disk);

	return err;

}



static int __init z2_init(void)