From: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Date: Sat, 30 May 2009 12:50:58 +0000 (+0900)
Subject: nilfs2: fix bh leak in nilfs_cpfile_delete_checkpoints function
X-Git-Tag: v2.6.30-rc8~12^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=62013ab5d5df297a01ae5863b5c26d758ec0af7f;p=profile%2Fcommon%2Fkernel-common.git

nilfs2: fix bh leak in nilfs_cpfile_delete_checkpoints function

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>
---

diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index e90b60d..300f1cd 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -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: