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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 20 Dec 2013 15:45:08 +0000 (07:45 -0800)
commit9126f1f5d338fed3f492b4d49f64178231dce76d
tree07ae5df3957997a09ac65709e69b53297b0d8533
parentfbaa929d862503b59110081efb57a40213193a6d
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>
drivers/usb/core/hub.c