ext4: fix ext4_xattr_move_to_block()

	struct ext4_xattr_ibody_find *is = NULL;

	struct ext4_xattr_block_find *bs = NULL;

	char *buffer = NULL, *b_entry_name = NULL;

	size_t value_offs, value_size;

	size_t value_size = le32_to_cpu(entry->e_value_size);

	struct ext4_xattr_info i = {

		.value = NULL,

		.value_len = 0,

		.name_index = entry->e_name_index,

		.in_inode = !!entry->e_value_inum,

	};

	struct ext4_xattr_ibody_header *header = IHDR(inode, raw_inode);

	int error;

	value_offs = le16_to_cpu(entry->e_value_offs);

	value_size = le32_to_cpu(entry->e_value_size);

	is = kzalloc(sizeof(struct ext4_xattr_ibody_find), GFP_NOFS);

	bs = kzalloc(sizeof(struct ext4_xattr_block_find), GFP_NOFS);

	buffer = kmalloc(value_size, GFP_NOFS);

	bs->bh = NULL;

	/* Save the entry name and the entry value */

	if (entry->e_value_inum) {

		error = ext4_xattr_inode_get(inode,

					     le32_to_cpu(entry->e_value_inum),

					     buffer, value_size);

		if (error)

			goto out;

	} else {

		size_t value_offs = le16_to_cpu(entry->e_value_offs);

		memcpy(buffer, (void *)IFIRST(header) + value_offs, value_size);

	}

	memcpy(b_entry_name, entry->e_name, entry->e_name_len);

	b_entry_name[entry->e_name_len] = '\0';

	i.name = b_entry_name;

	if (error)

		goto out;

	i.name = b_entry_name;

	i.value = buffer;

	i.value_len = value_size;

	error = ext4_xattr_block_find(inode, &i, bs);