net: stmmac: Fix "Unbalanced pm_runtime_enable!" warning

If the device is PCI based like intel-eth-pci, pm_runtime_enable() is
already called by pci_pm_init().

So only pm_runtime_enable() when it's not already enabled.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.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 63ff2dad8c85ff2bcecfbb6bbbaeff1187a4180e..6708ca2aa4f73dfdc0ef130ae41d004210b30ee7 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -7159,7 +7159,8 @@ int stmmac_dvr_probe(struct device *device,
 
        pm_runtime_get_noresume(device);
        pm_runtime_set_active(device);
-       pm_runtime_enable(device);
+       if (!pm_runtime_enabled(device))
+               pm_runtime_enable(device);
 
        if (priv->hw->pcs != STMMAC_PCS_TBI &&
            priv->hw->pcs != STMMAC_PCS_RTBI) {