USB: hub: handle claim of enabled remote wakeup after reset
authorOliver Neukum <oliver@neukum.org>
Thu, 29 Nov 2012 14:05:57 +0000 (15:05 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 17 Jan 2013 16:46:39 +0000 (08:46 -0800)
commit3cf79239413526ca844c97a0c175a5bc5bfe45a5
tree14af21d9161c04f1c79416908bd1a36057e1436d
parent35b3b7dc3d885ca753653d61a0ef5c4318f5e9f6
USB: hub: handle claim of enabled remote wakeup after reset

commit 07e72b95f5038cc82304b9a4a2eb7f9fc391ea68 upstream.

Some touchscreens have buggy firmware which claims
remote wakeup to be enabled after a reset. They nevertheless
crash if the feature is cleared by the host.
Add a check for reset resume before checking for
an enabled remote wakeup feature. On compliant
devices the feature must be cleared after a reset anyway.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/core/hub.c