dpaa2-eth: unregister the netdev before disconnecting from the PHY

stable inclusion
from stable-v5.10.101
commit f8edc6feab4d5c7c0b6c6bfdec6bf9e294b2dc3e
bugzilla: https://gitee.com/openeuler/kernel/issues/I5669Z

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f8edc6feab4d5c7c0b6c6bfdec6bf9e294b2dc3e

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

[ Upstream commit 9ccc6e0c ]

The netdev should be unregistered before we are disconnecting from the
MAC/PHY so that the dev_close callback is called and the PHY and the
phylink workqueues are actually stopped before we are disconnecting and
destroying the phylink instance.

Fixes: 71947923 ("dpaa2-eth: add MAC/PHY support through phylink")
Signed-off-by: NRobert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYu Liao <liaoyu15@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

@@ -4405,12 +4405,12 @@ static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
 #ifdef CONFIG_DEBUG_FS
 	dpaa2_dbg_remove(priv);
 #endif
+
+	unregister_netdev(net_dev);
 	rtnl_lock();
 	dpaa2_eth_disconnect_mac(priv);
 	rtnl_unlock();
 
-	unregister_netdev(net_dev);
-
 	dpaa2_eth_dl_port_del(priv);
 	dpaa2_eth_dl_traps_unregister(priv);
 	dpaa2_eth_dl_unregister(priv);