The port pm_runtime implementation unconditionally clears FEAT_C_ENABLE
after clearing PORT_POWER, but the bit is reserved on usb3 hub ports.
We expect khubd to be prevented from running because the port state is
not RPM_ACTIVE, so we need to clear any errors for usb2 ports.
Acked-by: Alan Stern <st...@rowland.harvard.edu>
Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
---
drivers/usb/core/port.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 191d7c3c9791..4917473de203 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -136,7 +136,8 @@ static int usb_port_runtime_suspend(struct device *dev)
set_bit(port1, hub->busy_bits);
retval = usb_hub_set_port_power(hdev, hub, port1, false);
usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_CONNECTION);
- usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_ENABLE);
+ if (!port_dev->is_superspeed)
+ usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_ENABLE);
clear_bit(port1, hub->busy_bits);
usb_autopm_put_interface(intf);
--
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