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Subject[PATCH 4.14 042/193] ovl: Put upperdentry if ovl_check_origin() fails
Date
4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vivek Goyal <vgoyal@redhat.com>

commit 5455f92b54e516995a9ca45bbf790d3629c27a93 upstream.

If ovl_check_origin() fails, we should put upperdentry. We have a reference
on it by now. So goto out_put_upper instead of out.

Fixes: a9d019573e88 ("ovl: lookup non-dir copy-up-origin by file handle")
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
fs/overlayfs/namei.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -630,7 +630,7 @@ struct dentry *ovl_lookup(struct inode *
err = ovl_check_origin(upperdentry, roe->lowerstack,
roe->numlower, &stack, &ctr);
if (err)
- goto out;
+ goto out_put_upper;
}

if (d.redirect) {

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