From ac544a459a95fbded20132cc58bb51663c98114c Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng Date: Sun, 13 Jan 2019 19:02:54 +0800 Subject: [PATCH] staging: rtl8712u: Fix suspend and resume callbacks When system resume and the rtl8712u dongle didn't lose its power, it doesn't work quite right: [ 146.844241] r8712u 2-3:1.0 wlp0s4f1u3: Unable to resume ... [ 154.029573] r8712u 2-3:1.0 wlp0s4f1u3: In r8711_wx_set_scan: bDriverStopped=1 The !netif_running() check in PM callbacks aren't correct because rtl8712u doesn't support runtime suspend, so the when the PM ops get called, it's system suspend or system resume, hence we want to "stop everthing" or "resume everything". The NULL check on pnetdev is also redundant, the only place pnetdev can become NULL is the disconnect callback, which is mutually exclusive to PM callbacks. This can make rtl8712u starts working after system resume. Signed-off-by: Kai-Heng Feng Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8712/usb_intf.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c index 9cf2a79..005010d 100644 --- a/drivers/staging/rtl8712/usb_intf.c +++ b/drivers/staging/rtl8712/usb_intf.c @@ -196,10 +196,6 @@ static int r871x_suspend(struct usb_interface *pusb_intf, pm_message_t state) struct _adapter *padapter = netdev_priv(pnetdev); netdev_info(pnetdev, "Suspending...\n"); - if (!pnetdev || !netif_running(pnetdev)) { - netdev_info(pnetdev, "Unable to suspend\n"); - return 0; - } padapter->bSuspended = true; rtl871x_intf_stop(padapter); if (pnetdev->netdev_ops->ndo_stop) @@ -221,10 +217,6 @@ static int r871x_resume(struct usb_interface *pusb_intf) struct _adapter *padapter = netdev_priv(pnetdev); netdev_info(pnetdev, "Resuming...\n"); - if (!pnetdev || !netif_running(pnetdev)) { - netdev_info(pnetdev, "Unable to resume\n"); - return 0; - } netif_device_attach(pnetdev); if (pnetdev->netdev_ops->ndo_open) pnetdev->netdev_ops->ndo_open(pnetdev); -- 2.7.4