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authorLi Zefan <lizf@cn.fujitsu.com>2012-01-09 14:36:28 +0800
committerLi Zefan <lizf@cn.fujitsu.com>2012-01-11 10:26:36 +0800
commit706efc6630c2722602541a6a2fc5900a4e38456a (patch)
treebba227c9b49146e6c1bb6b529224088dbb9b8811 /fs/btrfs/free-space-cache.c
parenta1ee5a45818acc7f9c13e560827cf3e8735ac919 (diff)
Btrfs: check the return value of io_ctl_init()
It can return -ENOMEM. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
-rw-r--r--fs/btrfs/free-space-cache.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 4e55af333e1..e4eb222147c 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -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))