Commit 706efc66 authored by Li Zefan's avatar Li Zefan
Browse files

Btrfs: check the return value of io_ctl_init() 



It can return -ENOMEM.

Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
parent a1ee5a45

fs/btrfs/free-space-cache.c

+7 −2
Original line number Diff line number Diff line
@@ -637,7 +637,10 @@ int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, 
	if (!num_entries)

		return 0;



	io_ctl_init(&io_ctl, inode, root);

	ret = io_ctl_init(&io_ctl, inode, root);

	if (ret)

		return ret;



	ret = readahead_cache(inode);

	if (ret)

		goto out;
@@ -851,7 +854,9 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, 
	if (!i_size_read(inode))

		return -1;



	io_ctl_init(&io_ctl, inode, root);

	ret = io_ctl_init(&io_ctl, inode, root);

	if (ret)

		return -1;



	/* Get the cluster for this block_group if it exists */

	if (block_group && !list_empty(&block_group->cluster_list))