Re: [PATCH] scsi: sd: call device_del() if device_add_disk() fails

[James Bottomley]

On Thu, 2022-03-31 at 16:42 +0300, Dan Carpenter wrote:
[...]
> Also, I don't really understand why we don't have to call
> put_device(&sdkp->disk_dev) at the end of sd_remove().

That's because the final put is done by the gendisk ->free_disk()
function which is scsi_disk_free_disk().  Most of the gendisk functions
we provide convert a gendisk to a scsi_disk (via the gendisk
private_data), so the sdkp has to live as long as the gendisk.

James