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dasd: cleanup dasd_scan_partitions

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Use blkdev_get_by_dev instead of bdget_disk + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-09-21 09:19:52 +02:00 committed by Jens Axboe
parent 5a56ad7882
commit 841ab72cb5
1 changed files with 4 additions and 11 deletions
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15
drivers/s390/block/dasd_genhd.c
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@ -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",
PTR_ERR(bdev));
return -ENODEV;
}