[PATCH AUTOSEL 4.14 05/28] ceph: return ceph_mdsc_do_request() errors from __get_parent()

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From: Qiujun Huang <hqjagain@xxxxxxxxx>

[ 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 <hqjagain@xxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/ceph/export.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 3c59ad180ef0b..4cfe1154d4c72 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -151,6 +151,11 @@ 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




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