9p: make sure ->lookup() adds fid to the right dentry
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 80ff01b..d86edc8 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -824,7 +824,6 @@
p9_client_clunk(fid);
return ERR_CAST(inode);
}
- v9fs_fid_add(dentry, fid);
/*
* If we had a rename on the server and a parallel lookup
* for the new name, then make sure we instantiate with
@@ -833,7 +832,11 @@
* k/b.
*/
res = d_materialise_unique(dentry, inode);
- if (IS_ERR(res))
+ if (!res)
+ v9fs_fid_add(dentry, fid);
+ else if (!IS_ERR(res))
+ v9fs_fid_add(res, fid);
+ else
p9_client_clunk(fid);
return res;
}