[PATCH] ceph: Fix an Oops in error handling

[Dan Carpenter]

The "req" pointer is an error pointer and not NULL so this check needs
to be fixed.

Fixes: 1cf7fdf52d5a ("ceph: convert readpage to fscache read helper")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 fs/ceph/addr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 5eec6f66fe52..fb0238a4d34f 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -273,7 +273,7 @@ static void ceph_netfs_issue_op(struct 
netfs_read_subrequest *subreq)
        if (err)
                iput(inode);
 out:
-       if (req)
+       if (!IS_ERR_OR_NULL(req))
                ceph_osdc_put_request(req);
        if (err)
                netfs_subreq_terminated(subreq, err);
-- 
2.29.2