From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Thu, 22 Jun 2006 20:29:52 +0000 (-0700)
Subject: [PATCH] USB: get USB suspend to work again
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0517587e5896cef1d5f99d3b24f5f2ca15d952ad;p=linux-beck.git

[PATCH] USB: get USB suspend to work again

Yeah, it's a hack, but it is only temporary until Alan's patches
reworking this area make it in.  We really should not care what devices
below us are doing, especially when we do not really know what type of
devices they are.  This patch relies on the fact that the endpoint
devices do not have a driver assigned to us.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 515310751303..fb488c8a860c 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -991,6 +991,8 @@ void usb_buffer_unmap_sg (struct usb_device *dev, unsigned pipe,
 
 static int verify_suspended(struct device *dev, void *unused)
 {
+	if (dev->driver == NULL)
+		return 0;
 	return (dev->power.power_state.event == PM_EVENT_ON) ? -EBUSY : 0;
 }