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block: genhd: add 'groups' argument to device_add_disk

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commit fef912bf860e8e7e48a2bfb978a356bba743a8b7 upstream.

Update device_add_disk() to take an 'groups' argument so that
individual drivers can register a device with additional sysfs
attributes.
This avoids race condition the driver would otherwise have if these
groups were to be created with sysfs_add_groups().

Signed-off-by: Martin Wilck <martin.wilck@suse.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hannes Reinecke
2021-02-23 17:28:55 +08:00
committed by Greg Kroah-Hartman
parent e21a0a2a46
commit 1bf6a186c4
28 changed files with 43 additions and 33 deletions
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2
arch/um/drivers/ubd_kern.c
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@@ -891,7 +891,7 @@ static int ubd_disk_register(int major, u64 size, int unit,
disk->private_data = &ubd_devs[unit];
disk->queue = ubd_devs[unit].queue;
device_add_disk(parent, disk);
device_add_disk(parent, disk, NULL);
*disk_out = disk;
return 0;