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nilfs2: fix bh leak in nilfs_cpfile_delete_checkpoints function

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The nilfs_cpfile_delete_checkpoints() wrongly skips brelse() for the
header block of checkpoint file in case of errors.  This fixes the
leak bug.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi 2009-05-30 21:50:58 +09:00
parent 59a3759d0f
commit 62013ab5d5
1 changed files with 4 additions and 2 deletions
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6
fs/nilfs2/cpfile.c
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@ -311,7 +311,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (ret < 0) {
if (ret != -ENOENT)
goto out_sem;
goto out_header;
/* skip hole */
ret = 0;
continue;
@ -344,7 +344,7 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
continue;
printk(KERN_ERR "%s: cannot delete block\n",
__func__);
goto out_sem;
goto out_header;
}
}
@ -361,6 +361,8 @@ int nilfs_cpfile_delete_checkpoints(struct inode *cpfile,
nilfs_mdt_mark_dirty(cpfile);
kunmap_atomic(kaddr, KM_USER0);
}
out_header:
brelse(header_bh);
out_sem: