diff options
| author | Julius Werner <jwerner@chromium.org> | 2013-11-07 10:59:14 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-04 17:00:43 -0800 |
| commit | 2d51f3cd11f414c56a87dc018196b85fd50b04a4 (patch) | |
| tree | 147e8709f4dd2f9d695bd2ee3fbdb89c9095d2c7 | |
| parent | 9876388edfa553960815110acae4544359b385b5 (diff) | |
| download | linux-2d51f3cd11f414c56a87dc018196b85fd50b04a4.tar.bz2 | |
usb: hub: Use correct reset for wedged USB3 devices that are NOTATTACHED
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>
Cc: stable <stable@vger.kernel.org>
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 a7c04e24ca48..bd9dc3504b51 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -4832,8 +4832,9 @@ static void hub_events(void) hub->ports[i - 1]->child; 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); |