[PATCH bpf] xsk: fix return value of xdp_umem_assign_dev()

[Prashant Bhole]

s/ENOTSUPP/EOPNOTSUPP/ in function umem_assign_dev().
This function's return value is directly returned by xsk_bind().
EOPNOTSUPP is bind()'s possible return value.

Fixes: f734607e819b ("xsk: refactor xdp_umem_assign_dev()")
Signed-off-by: Prashant Bhole <bhole_prashant...@lab.ntt.co.jp>
---
 net/xdp/xdp_umem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index 911ca6d3cb5a..bfe2dbea480b 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c
@@ -74,14 +74,14 @@ int xdp_umem_assign_dev(struct xdp_umem *umem, struct 
net_device *dev,
                return 0;
 
        if (!dev->netdev_ops->ndo_bpf || !dev->netdev_ops->ndo_xsk_async_xmit)
-               return force_zc ? -ENOTSUPP : 0; /* fail or fallback */
+               return force_zc ? -EOPNOTSUPP : 0; /* fail or fallback */
 
        bpf.command = XDP_QUERY_XSK_UMEM;
 
        rtnl_lock();
        err = xdp_umem_query(dev, queue_id);
        if (err) {
-               err = err < 0 ? -ENOTSUPP : -EBUSY;
+               err = err < 0 ? -EOPNOTSUPP : -EBUSY;
                goto err_rtnl_unlock;
        }
 
-- 
2.17.1