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| author | Naohiro Aota <naota@elisp.net> | 2013-06-06 09:56:34 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-06-08 15:07:53 -0400 |
| commit | 6379ef9fb2482a92b5fe09f927d6ce1f989c0c6d (patch) | |
| tree | f4bd8f1479d092f47d93570c4a8e50503d86a05a /fs/btrfs | |
| parent | 7b5ff90ed081787ec0765ceb4fe5ccf5677493a6 (diff) | |
| download | lwn-6379ef9fb2482a92b5fe09f927d6ce1f989c0c6d.tar.gz lwn-6379ef9fb2482a92b5fe09f927d6ce1f989c0c6d.zip | |
btrfs: Drop inode if inode root is NULL
There is a path where btrfs_drop_inode() is called with its inode's root
is NULL: In btrfs_new_inode(), when btrfs_set_inode_index() fails,
iput() is called. We should handle this case before taking look at the
root->root_item.
Signed-off-by: Naohiro Aota <naota@elisp.net>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/inode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 23c596cd1b98..c931a4dbd031 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -8011,6 +8011,9 @@ int btrfs_drop_inode(struct inode *inode) { struct btrfs_root *root = BTRFS_I(inode)->root; + if (root == NULL) + return 1; + /* the snap/subvol tree is on deleting */ if (btrfs_root_refs(&root->root_item) == 0 && root != root->fs_info->tree_root) |