[PATCH] fs: orangefs: fix error return code of orangefs_revalidate_lookup()

[Jia-Ju Bai]

When op_alloc() returns NULL to new_op, no error return code of
orangefs_revalidate_lookup() is assigned.
To fix this bug, ret is assigned with -ENOMEM in this case.

Fixes: 8bb8aefd5afb ("OrangeFS: Change almost all instances of the string PVFS2 
to OrangeFS.")
Reported-by: TOTE Robot <os...@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1...@gmail.com>
---
 fs/orangefs/dcache.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/orangefs/dcache.c b/fs/orangefs/dcache.c
index fe484cf93e5c..8bbe9486e3a6 100644
--- a/fs/orangefs/dcache.c
+++ b/fs/orangefs/dcache.c
@@ -26,8 +26,10 @@ static int orangefs_revalidate_lookup(struct dentry *dentry)
        gossip_debug(GOSSIP_DCACHE_DEBUG, "%s: attempting lookup.\n", __func__);
 
        new_op = op_alloc(ORANGEFS_VFS_OP_LOOKUP);
-       if (!new_op)
+       if (!new_op) {
+               ret = -ENOMEM;
                goto out_put_parent;
+       }
 
        new_op->upcall.req.lookup.sym_follow = ORANGEFS_LOOKUP_LINK_NO_FOLLOW;
        new_op->upcall.req.lookup.parent_refn = parent->refn;
-- 
2.17.1