Re: [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@xxxxxx>
---
  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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