Check return value of ext3_journal_get_write_access, ext3_journal_dirty_metadata
and ext3_mark_inode_dirty. Consolidate error path under new label 'out_clear_inode'
and adjust bh releasing appropriately.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx>
---
fs/ext3/namei.c | 36 ++++++++++++++++++++++--------------
1 files changed, 22 insertions(+), 14 deletions(-)
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index bce9dce..03fccc5 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1762,7 +1762,7 @@ static int ext3_mkdir(struct inode * dir, struct dentry * dentry, int mode)
{
handle_t *handle;
struct inode * inode;
- struct buffer_head * dir_block;
+ struct buffer_head * dir_block = NULL;
struct ext3_dir_entry_2 * de;
int err, retries = 0;
@@ -1790,15 +1790,14 @@ retry:
inode->i_fop = &ext3_dir_operations;
inode->i_size = EXT3_I(inode)->i_disksize = inode->i_sb->s_blocksize;
dir_block = ext3_bread (handle, inode, 0, 1, &err);
- if (!dir_block) {
- drop_nlink(inode); /* is this nlink == 0? */
- unlock_new_inode(inode);
- ext3_mark_inode_dirty(handle, inode);
- iput (inode);
- goto out_stop;
- }
+ if (!dir_block)
+ goto out_clear_inode;
+
BUFFER_TRACE(dir_block, "get_write_access");
- ext3_journal_get_write_access(handle, dir_block);
+ err = ext3_journal_get_write_access(handle, dir_block);
+ if (err)
+ goto out_clear_inode;
+
de = (struct ext3_dir_entry_2 *) dir_block->b_data;
de->inode = cpu_to_le32(inode->i_ino);
de->name_len = 1;
@@ -1814,11 +1813,16 @@ retry:
ext3_set_de_type(dir->i_sb, de, S_IFDIR);
inode->i_nlink = 2;
BUFFER_TRACE(dir_block, "call ext3_journal_dirty_metadata");
- ext3_journal_dirty_metadata(handle, dir_block);
- brelse (dir_block);
- ext3_mark_inode_dirty(handle, inode);
- err = ext3_add_entry (handle, dentry, inode);
+ err = ext3_journal_dirty_metadata(handle, dir_block);
+ if (err)
+ goto out_clear_inode;
+
+ err = ext3_mark_inode_dirty(handle, inode);
+ if (!err)
+ err = ext3_add_entry (handle, dentry, inode);
+
if (err) {
+out_clear_inode:
inode->i_nlink = 0;
unlock_new_inode(inode);
ext3_mark_inode_dirty(handle, inode);
@@ -1827,10 +1831,14 @@ retry:
}
inc_nlink(dir);
ext3_update_dx_flag(dir);
- ext3_mark_inode_dirty(handle, dir);
+ err = ext3_mark_inode_dirty(handle, dir);
+ if (err)
+ goto out_clear_inode;
+
d_instantiate(dentry, inode);
unlock_new_inode(inode);
out_stop:
+ brelse(dir_block);
ext3_journal_stop(handle);
if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
goto retry;
--
1.7.0.4
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