diff options
| author | Julius Werner <jwerner@chromium.org> | 2013-11-07 10:59:14 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-20 07:34:19 -0800 |
| commit | 325be9564c80026b3ca6c1025e2fbb074bdd27a2 (patch) | |
| tree | b6c7031456f9b904756e0ea88d13a1a2cce954e5 | |
| parent | ee4bb2579e1182fa013694e429e6a418d6a3bb78 (diff) | |
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>
| -rw-r--r-- | drivers/usb/core/hub.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 82fce32ca229..14476faf9a00 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -3891,8 +3891,9 @@ static void hub_events(void) hub->hdev->children[i - 1]; dev_dbg(hub_dev, "warm reset port %d\n", i); - if (!udev || !(portstatus & - USB_PORT_STAT_CONNECTION)) { + if (!udev || + !(portstatus & USB_PORT_STAT_CONNECTION) || + udev->state == USB_STATE_NOTATTACHED) { status = hub_port_reset(hub, i, NULL, HUB_BH_RESET_TIME, true); |