ext4: don't dereference null pointer when make_indexed_dir() fails

Fix for a null pointer bug found while running punch hole tests

Signed-off-by: Allison Henderson <achender@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Allison Henderson 2011-05-15 00:19:41 -04:00 committed by Theodore Ts'o
parent 44183d4231
commit 6976a6f2ac

View File

@ -1413,6 +1413,10 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
frame->at = entries;
frame->bh = bh;
bh = bh2;
ext4_handle_dirty_metadata(handle, dir, frame->bh);
ext4_handle_dirty_metadata(handle, dir, bh);
de = do_split(handle,dir, &bh, frame, &hinfo, &retval);
if (!de) {
/*
@ -1421,8 +1425,6 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
* with corrupted filesystem.
*/
ext4_mark_inode_dirty(handle, dir);
ext4_handle_dirty_metadata(handle, dir, frame->bh);
ext4_handle_dirty_metadata(handle, dir, bh);
dx_release(frames);
return retval;
}