net: stmmac: fix pm runtime issue in stmmac_dvr_remove()

If netif is running when stmmac_dvr_remove is invoked,
the unregister_netdev will call ndo_stop(stmmac_release) and
vlan_kill_rx_filter(stmmac_vlan_rx_kill_vid).

Currently, stmmac_dvr_remove() will disable pm runtime before
unregister_netdev. When stmmac_vlan_rx_kill_vid is invoked,
pm_runtime_resume_and_get in it returns EACCESS error number,
and reports:

	dwmac-mediatek 11021000.ethernet eth0: stmmac_dvr_remove: removing driver
	dwmac-mediatek 11021000.ethernet eth0: FPE workqueue stop
	dwmac-mediatek 11021000.ethernet eth0: failed to kill vid 0081/0

Move the pm_runtime_disable to the end of stmmac_dvr_remove
to fix this issue.

Fixes: 6449520391dfc ("net: stmmac: properly handle with runtime pm in stmmac_dvr_remove()")
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index d1a7cf4..197fac5 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -7213,8 +7213,6 @@ int stmmac_dvr_remove(struct device *dev)
        netdev_info(priv->dev, "%s: removing driver", __func__);
 
        pm_runtime_get_sync(dev);
-       pm_runtime_disable(dev);
-       pm_runtime_put_noidle(dev);
 
        stmmac_stop_all_dma(priv);
        stmmac_mac_set(priv, priv->ioaddr, false);
@@ -7241,6 +7239,9 @@ int stmmac_dvr_remove(struct device *dev)
        mutex_destroy(&priv->lock);
        bitmap_free(priv->af_xdp_zc_qps);
 
+       pm_runtime_disable(dev);
+       pm_runtime_put_noidle(dev);
+
        return 0;
 }
 EXPORT_SYMBOL_GPL(stmmac_dvr_remove);