linux-kernel - [PATCH] OHCI: disallow autostop when wakeup is disabled

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Message-ID: <Pine.LNX.4.44L0.0611151157260.3219-100000@iolanthe.rowland.org>
Date:	Wed, 15 Nov 2006 11:59:28 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Andrew Morton <akpm@...l.org>
cc:	Kernel development list <linux-kernel@...r.kernel.org>
Subject: [PATCH] OHCI: disallow autostop when wakeup is disabled

This patch (as822) prevents the OHCI autostop mechanism from starting
up if the root hub is not able or not allowed to issue wakeup requests.

Signed-off-by: Alan Stern <stern@...land.harvard.edu>

---

On Tue, 14 Nov 2006, Andrew Morton wrote:

> > Then this should get merged into 2.6.19-rc ASAP ...
> 
> please send final version?

Here it is.  A copy has already been sent to Greg KH.

Alan Stern


Index: 2.6.19-rc5/drivers/usb/host/ohci-hub.c
===================================================================
--- 2.6.19-rc5.orig/drivers/usb/host/ohci-hub.c
+++ 2.6.19-rc5/drivers/usb/host/ohci-hub.c
@@ -422,7 +422,8 @@ ohci_hub_status_data (struct usb_hcd *hc
 				ohci->autostop = 0;
 				ohci->next_statechange = jiffies +
 						STATECHANGE_DELAY;
-			} else if (time_after_eq (jiffies,
+			} else if (device_may_wakeup(&hcd->self.root_hub->dev)
+					&& time_after_eq(jiffies,
 						ohci->next_statechange)
 					&& !ohci->ed_rm_list
 					&& !(ohci->hc_control &

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