usb: hub: Use correct reset for wedged USB3 devices that are NOTATTACHED
authorJulius Werner <jwerner@chromium.org>
Thu, 7 Nov 2013 18:59:14 +0000 (10:59 -0800)
committerBen Hutchings <ben@decadent.org.uk>
Fri, 3 Jan 2014 04:33:29 +0000 (04:33 +0000)
commit871d7214744f86b8edcc7b7d5dc7d4ff1f26d7bd
tree3a759a927a712381e9e22e060394c76b28c72ce1
parent87da9b02a3e94abb76c1da4305252cfaa6e960f1
usb: hub: Use correct reset for wedged USB3 devices that are NOTATTACHED

commit 2d51f3cd11f414c56a87dc018196b85fd50b04a4 upstream.

This patch adds a check for USB_STATE_NOTATTACHED to the
hub_port_warm_reset_required() workaround for ports that end up in
Compliance Mode in hub_events() when trying to decide which reset
function to use. Trying to call usb_reset_device() with a NOTATTACHED
device will just fail and leave the port broken.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/usb/core/hub.c