[PATCH 06/14] zram: cleanup backing_dev_store

Christoph Hellwig
2020-09-17T17:13:07Z

Use blkdev_get_by_dev instead of bdgrab + blkdev_get.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/zram/zram_drv.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index a356275605b104..91ccfe444525b4 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -491,9 +491,10 @@ static ssize_t backing_dev_store(struct device *dev,
goto out;
}

- bdev = bdgrab(I_BDEV(inode));
- err = blkdev_get(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL, zram);
- if (err < 0) {
+ bdev = blkdev_get_by_dev(inode->i_rdev,
+ FMODE_READ | FMODE_WRITE | FMODE_EXCL, zram);
+ if (IS_ERR(bdev)) {
+ err = PTR_ERR(bdev);
bdev = NULL;
goto out;
}
--
2.28.0