[PATCH 4.9 09/80] ceph: return ceph_mdsc_do_request() errors from __get_parent()

[Greg Kroah-Hartman]

From: Qiujun Huang <hqjag...@gmail.com>

[ Upstream commit c6d50296032f0b97473eb2e274dc7cc5d0173847 ]

Return the error returned by ceph_mdsc_do_request(). Otherwise,
r_target_inode ends up being NULL this ends up returning ENOENT
regardless of the error.

Signed-off-by: Qiujun Huang <hqjag...@gmail.com>
Reviewed-by: Jeff Layton <jlay...@kernel.org>
Signed-off-by: Ilya Dryomov <idryo...@gmail.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 fs/ceph/export.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 1780218a48f08..f8e1f31e46439 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -157,6 +157,11 @@ static struct dentry *__get_parent(struct super_block *sb,
 
        req->r_num_caps = 1;
        err = ceph_mdsc_do_request(mdsc, NULL, req);
+       if (err) {
+               ceph_mdsc_put_request(req);
+               return ERR_PTR(err);
+       }
+
        inode = req->r_target_inode;
        if (inode)
                ihold(inode);
-- 
2.20.1