From: Luis Chamberlain <mcgrof@kernel.org> mainline inclusion from mainline-v5.15-rc1 commit 614310c9c8ca15359f4e71a5bbd9165897b4d54e category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I81XCK Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ---------------------------------------- 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/20210818144542.19305-8-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Zhong Jinghua <zhongjinghua@huawei.com> Signed-off-by: Li Nan <linan122@huawei.com> --- block/blk.h | 5 +++-- block/blk-integrity.c | 12 +++++++----- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/block/blk.h b/block/blk.h index 7b3693149183..4bbcc971d4f7 100644 --- a/block/blk.h +++ b/block/blk.h @@ -134,7 +134,7 @@ static inline bool integrity_req_gap_front_merge(struct request *req, bip_next->bip_vec[0].bv_offset); } -void blk_integrity_add(struct gendisk *); +int blk_integrity_add(struct gendisk *disk); void blk_integrity_del(struct gendisk *); #else /* CONFIG_BLK_DEV_INTEGRITY */ static inline bool blk_integrity_merge_rq(struct request_queue *rq, @@ -168,8 +168,9 @@ static inline bool bio_integrity_endio(struct bio *bio) static inline void bio_integrity_free(struct bio *bio) { } -static inline void blk_integrity_add(struct gendisk *disk) +static inline int blk_integrity_add(struct gendisk *disk) { + return 0; } static inline void blk_integrity_del(struct gendisk *disk) { diff --git a/block/blk-integrity.c b/block/blk-integrity.c index 9e83159f5a52..16d5d5338392 100644 --- a/block/blk-integrity.c +++ b/block/blk-integrity.c @@ -438,13 +438,15 @@ void blk_integrity_unregister(struct gendisk *disk) } EXPORT_SYMBOL(blk_integrity_unregister); -void blk_integrity_add(struct gendisk *disk) +int blk_integrity_add(struct gendisk *disk) { - if (kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype, - &disk_to_dev(disk)->kobj, "%s", "integrity")) - return; + int ret; - kobject_uevent(&disk->integrity_kobj, KOBJ_ADD); + ret = kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype, + &disk_to_dev(disk)->kobj, "%s", "integrity"); + if (!ret) + kobject_uevent(&disk->integrity_kobj, KOBJ_ADD); + return ret; } void blk_integrity_del(struct gendisk *disk) -- 2.39.2