net: macb: fix call to pm_runtime in the suspend/resume functions

The calls to pm_runtime_force_suspend/resume() functions are only
relevant if the device is not configured to act as a WoL wakeup source.
Add the device_may_wakeup() test before calling them.

Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Sergio Prado <sergio.prado@e-labworks.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 5488152..f1f0976 100644 (file)
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4606,7 +4606,8 @@ static int __maybe_unused macb_suspend(struct device *dev)
 
        if (bp->ptp_info)
                bp->ptp_info->ptp_remove(netdev);
-       pm_runtime_force_suspend(dev);
+       if (!device_may_wakeup(dev))
+               pm_runtime_force_suspend(dev);
 
        return 0;
 }
@@ -4621,7 +4622,8 @@ static int __maybe_unused macb_resume(struct device *dev)
        if (!netif_running(netdev))
                return 0;
 
-       pm_runtime_force_resume(dev);
+       if (!device_may_wakeup(dev))
+               pm_runtime_force_resume(dev);
 
        if (bp->wol & MACB_WOL_ENABLED) {
                macb_writel(bp, IDR, MACB_BIT(WOL));