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block: add __must_check for *add_disk*() callers 

Now that we have done a spring cleaning on all drivers and added
error checking / handling, let's keep it that way and ensure
no new drivers fail to stick with it.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20211110002949.999380-1-mcgrof@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Luis Chamberlain 2021-11-09 16:29:49 -08:00 committed by Jens Axboe
parent ecaf97f474
commit 278167fd2f
2 changed files with 6 additions and 6 deletions
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6
block/genhd.c
View File

@ -394,8 +394,8 @@ static void disk_scan_partitions(struct gendisk *disk)
* This function registers the partitioning information in @disk
* with the kernel.
*/
int device_add_disk(struct device *parent, struct gendisk *disk,
const struct attribute_group **groups)
int __must_check device_add_disk(struct device *parent, struct gendisk *disk,
const struct attribute_group **groups)
{
struct device *ddev = disk_to_dev(disk);
@ -544,7 +544,7 @@ out_disk_release_events:
out_free_ext_minor:
if (disk->major == BLOCK_EXT_MAJOR)
blk_free_ext_minor(disk->first_minor);
return WARN_ON_ONCE(ret); /* keep until all callers handle errors */
return ret;
}
EXPORT_SYMBOL(device_add_disk);

6
include/linux/genhd.h
View File

@ -205,9 +205,9 @@ static inline dev_t disk_devt(struct gendisk *disk)
void disk_uevent(struct gendisk *disk, enum kobject_action action);
/* block/genhd.c */
int device_add_disk(struct device *parent, struct gendisk *disk,
const struct attribute_group **groups);
static inline int add_disk(struct gendisk *disk)
int __must_check device_add_disk(struct device *parent, struct gendisk *disk,
const struct attribute_group **groups);
static inline int __must_check add_disk(struct gendisk *disk)
{
return device_add_disk(NULL, disk, NULL);
}