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[PATCH] fix bd_claim_by_kobject error handling

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This fixes bd_claim_by_kobject to release bdev correctly in case that
bd_claim succeeds but following add_bd_holder fails.

Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jun'ichi Nomura 2006-10-30 16:23:45 -05:00 committed by Linus Torvalds
parent a7aacdf9ea
commit bcb55165d3
1 changed files with 4 additions and 1 deletions
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5
fs/block_dev.c
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@ -751,8 +751,11 @@ static int bd_claim_by_kobject(struct block_device *bdev, void *holder,
mutex_lock_nested(&bdev->bd_mutex, BD_MUTEX_PARTITION);
res = bd_claim(bdev, holder);
if (res == 0)
if (res == 0) {
res = add_bd_holder(bdev, bo);
if (res)
bd_release(bdev);
}
if (res)
free_bd_holder(bo);
mutex_unlock(&bdev->bd_mutex);