From 5410a473fb7a466020af31e8b400c2d14ed94925 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Fri, 15 Mar 2013 12:08:59 +0800 Subject: [PATCH] usbnet: smsc75xx: don't recover device if suspend fails in system sleep If suspend callback fails in system sleep context, usb core will ignore the failure and let system sleep go ahead further, so this patch doesn't recover device under this situation. Also add comments on this case. Acked-by: David S. Miller Cc: Steve Glendinning Signed-off-by: Ming Lei Signed-off-by: Greg Kroah-Hartman --- drivers/net/usb/smsc75xx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 9abe51710f22..21b607ab86f2 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -2011,7 +2011,11 @@ static int smsc75xx_suspend(struct usb_interface *intf, pm_message_t message) ret = smsc75xx_enter_suspend0(dev); done: - if (ret) + /* + * TODO: resume() might need to handle the suspend failure + * in system sleep + */ + if (ret && PMSG_IS_AUTO(message)) usbnet_resume(intf); return ret; } -- 2.30.2