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SubjectRe: [PATCH 08/14] dasd: cleanup dasd_scan_partitions
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Hello!

On 21.09.2020 10:19, Christoph Hellwig wrote:

> Use blkdev_get_by_dev instead of bdget_disk + blkdev_get.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> drivers/s390/block/dasd_genhd.c | 15 ++++-----------
> 1 file changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
> index af5b0ecb8f8923..a9698fba9b76ce 100644
> --- a/drivers/s390/block/dasd_genhd.c
> +++ b/drivers/s390/block/dasd_genhd.c
> @@ -101,18 +101,11 @@ int dasd_scan_partitions(struct dasd_block *block)
> struct block_device *bdev;
> int rc;
>
> - bdev = bdget_disk(block->gdp, 0);
> - if (!bdev) {
> - DBF_DEV_EVENT(DBF_ERR, block->base, "%s",
> - "scan partitions error, bdget returned NULL");
> - return -ENODEV;
> - }
> -
> - rc = blkdev_get(bdev, FMODE_READ, NULL);
> - if (rc < 0) {
> + bdev = blkdev_get_by_dev(disk_devt(block->gdp), FMODE_READ, NULL);
> + if (IS_ERR(bdev)) {
> DBF_DEV_EVENT(DBF_ERR, block->base,
> - "scan partitions error, blkdev_get returned %d",
> - rc);
> + "scan partitions error, blkdev_get returned %ld",

blkdev_get_by_dev() now?

> + PTR_ERR(bdev));
> return -ENODEV;
> }
>

MBR, Sergei

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