linux-kernel - [07/73] Revert "Bluetooth: Enable USB autosuspend by default on btusb"

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Date:	Fri, 04 Mar 2011 16:55:12 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Matthew Garrett <mjg@...hat.com>,
	"Gustavo F. Padovan" <padovan@...fusion.mobi>
Subject: [07/73] Revert "Bluetooth: Enable USB autosuspend by default on btusb"

2.6.37-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Linus Torvalds <torvalds@...ux-foundation.org>

commit 78794b2cdeac37ac1fd950fc9c4454b56d88ac03 upstream.

This reverts commit 556ea928f78a390fe16ae584e6433dff304d3014.

Jeff Chua reports that it can cause some bluetooth devices (he mentions
an Bluetooth Intermec scanner) to just stop responding after a while
with messages like

  [ 4533.361959] btusb 8-1:1.0: no reset_resume for driver btusb?
  [ 4533.361964] btusb 8-1:1.1: no reset_resume for driver btusb?

from the kernel. See also

  https://bugzilla.kernel.org/show_bug.cgi?id=26182

for other reports.

Reported-by: Jeff Chua <jeff.chua.linux@...il.com>
Reported-by: Andrew Meakovski <meako@...mir.net>
Reported-by: Jim Faulkner <jfaulkne@....neu.edu>
Acked-by: Greg KH <gregkh@...e.de>
Acked-by: Matthew Garrett <mjg@...hat.com>
Acked-by: Gustavo F. Padovan <padovan@...fusion.mobi>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/bluetooth/btusb.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1038,8 +1038,6 @@ static int btusb_probe(struct usb_interf
 
 	usb_set_intfdata(intf, data);
 
-	usb_enable_autosuspend(interface_to_usbdev(intf));
-
 	return 0;
 }
 


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