From: Zhong Jinghua zhongjinghua@huawei.com
hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I81XCK
----------------------------------------
Fix kabi change caused by blk_register_region change return value.
Signed-off-by: Zhong Jinghua zhongjinghua@huawei.com Signed-off-by: Li Nan linan122@huawei.com --- include/linux/genhd.h | 2 +- block/genhd.c | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 92396234e96f..b0b9c4fa6311 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -374,7 +374,7 @@ extern struct gendisk *__alloc_disk_node(int minors, int node_id); extern struct kobject *get_disk_and_module(struct gendisk *disk); extern void put_disk(struct gendisk *disk); extern void put_disk_and_module(struct gendisk *disk); -extern int blk_register_region(dev_t devt, unsigned long range, +extern void blk_register_region(dev_t devt, unsigned long range, struct module *module, struct kobject *(*probe)(dev_t, int *, void *), int (*lock)(dev_t, void *), diff --git a/block/genhd.c b/block/genhd.c index ec0b707cca7c..521611ce85e0 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -651,11 +651,11 @@ static char *bdevt_str(dev_t devt, char *buf) * The hash chain is sorted on range, so that subranges can override. * Add error handling. */ -int blk_register_region(dev_t devt, unsigned long range, struct module *module, +void blk_register_region(dev_t devt, unsigned long range, struct module *module, struct kobject *(*probe)(dev_t, int *, void *), int (*lock)(dev_t, void *), void *data) { - return kobj_map(bdev_map, devt, range, module, probe, lock, data); + kobj_map(bdev_map, devt, range, module, probe, lock, data); }
EXPORT_SYMBOL(blk_register_region); @@ -809,8 +809,8 @@ static int __device_add_disk(struct device *parent, struct gendisk *disk, if (retval) goto out_free_ext_minor; bdi_set_owner(bdi, ddev); - retval = blk_register_region(disk_devt(disk), disk->minors, - NULL, exact_match, exact_lock, disk); + retval = kobj_map(bdev_map, disk_devt(disk), disk->minors, NULL, + exact_match, exact_lock, disk); if (retval) goto out_unregister_bdi; }