[PATCH 02/14] block: switch register_disk to use blkdev_get_by_dev
From: Christoph Hellwig <hch@lst.de>
Date: 2020-09-17 18:38:15
Also in:
linux-fsdevel, linux-ide, linux-mm, linux-pm, linux-s390, lkml, ocfs2-devel
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
Use blkdev_get_by_dev instead of open coding it using bdget_disk + blkdev_get. Signed-off-by: Christoph Hellwig <hch@lst.de> --- block/genhd.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/block/genhd.c b/block/genhd.c
index 7b56203c90a303..f778716fac6cde 100644
--- a/block/genhd.c
+++ b/block/genhd.c@@ -732,10 +732,9 @@ static void register_disk(struct device *parent, struct gendisk *disk, goto exit; set_bit(GD_NEED_PART_SCAN, &disk->state); - err = blkdev_get(bdev, FMODE_READ, NULL); - if (err < 0) - goto exit; - blkdev_put(bdev, FMODE_READ); + bdev = blkdev_get_by_dev(disk_devt(disk), FMODE_READ, NULL); + if (!IS_ERR(bdev)) + blkdev_put(bdev, FMODE_READ); exit: /* announce disk after possible partitions are created */
--
2.28.0