[PATCH net] net: macsec: fix rtnl locking issue

[Antoine Tenart]

netdev_update_features() must be called with the rtnl lock taken. Not
doing so triggers a warning, as ASSERT_RTNL() is used in
__netdev_update_features(), the first function called by
netdev_update_features(). Fix this.

Fixes: c850240b6c41 ("net: macsec: report real_dev features when HW offloading 
is enabled")
Signed-off-by: Antoine Tenart <antoine.ten...@bootlin.com>
---
 drivers/net/macsec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index d4034025c87c..d0d31cb99180 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -2641,11 +2641,12 @@ static int macsec_upd_offload(struct sk_buff *skb, 
struct genl_info *info)
        if (ret)
                goto rollback;
 
-       rtnl_unlock();
        /* Force features update, since they are different for SW MACSec and
         * HW offloading cases.
         */
        netdev_update_features(dev);
+
+       rtnl_unlock();
        return 0;
 
 rollback:
-- 
2.26.2