[PATCH 4.14 124/165] fuse: Add missed unlock_page() to fuse_readpages_fill()

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

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

From: Kirill Tkhai <ktk...@virtuozzo.com>

commit 109728ccc5933151c68d1106e4065478a487a323 upstream.

The above error path returns with page unlocked, so this place seems also
to behave the same.

Fixes: f8dbdf81821b ("fuse: rework fuse_readpages()")
Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszer...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/fuse/file.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -866,6 +866,7 @@ static int fuse_readpages_fill(void *_da
        }
 
        if (WARN_ON(req->num_pages >= req->max_pages)) {
+               unlock_page(page);
                fuse_put_request(fc, req);
                return -EIO;
        }