[PATCH 21/44] block: move bdput() to the callers of __blkdev_get

Christoph Hellwig hch at lst.de
Thu Nov 26 08:03:59 EST 2020


This will allow for a more symmetric calling convention going forward.

Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 fs/block_dev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 86a61a2141f642..d0783c55a0ce65 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1458,6 +1458,7 @@ static int __blkdev_get(struct block_device *bdev, struct gendisk *disk,
 			if (!(disk->flags & GENHD_FL_UP) ||
 			    !bdev->bd_part || !bdev->bd_part->nr_sects) {
 				__blkdev_put(whole, mode, 1);
+				bdput(whole);
 				ret = -ENXIO;
 				goto out_clear;
 			}
@@ -1740,9 +1741,10 @@ static void __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
 			disk->fops->release(disk, mode);
 	}
 	mutex_unlock(&bdev->bd_mutex);
-	bdput(bdev);
-	if (victim)
+	if (victim) {
 		__blkdev_put(victim, mode, 1);
+		bdput(victim);
+	}
 }
 
 void blkdev_put(struct block_device *bdev, fmode_t mode)
@@ -1792,6 +1794,7 @@ void blkdev_put(struct block_device *bdev, fmode_t mode)
 	mutex_unlock(&bdev->bd_mutex);
 
 	__blkdev_put(bdev, mode, 0);
+	bdput(bdev);
 	put_disk_and_module(disk);
 }
 EXPORT_SYMBOL(blkdev_put);
-- 
2.29.2




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