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Btrfs: fix subvol_sem leak in btrfs_rename() 

btrfs_rename() does not release the subvol_sem if the transaction failed to start.

Signed-off-by: Johann Lombardi <johann@whamcloud.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Johann Lombardi 2011-03-31 13:23:47 +00:00 committed by Chris Mason
parent fe3f566cd1
commit b44c59a80d
1 changed files with 5 additions and 3 deletions
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8
fs/btrfs/inode.c
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@ -6961,8 +6961,10 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
* should cover the worst case number of items we'll modify.
*/
trans = btrfs_start_transaction(root, 20);
if (IS_ERR(trans))
return PTR_ERR(trans);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
goto out_notrans;
}
btrfs_set_trans_block_group(trans, new_dir);
@ -7062,7 +7064,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
}
out_fail:
btrfs_end_transaction_throttle(trans, root);
out_notrans:
if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
up_read(&root->fs_info->subvol_sem);