usb: core: hub: Enable/disable U1/U2 in configured state (fea3af5e) · Commits · 戴 / test

SET_FEATURE(U1/U2_ENABLE) and CLEAR_FEATURE(U1/U2) only apply while the device is in configured state. Add proper check in usb_disable_lpm() and usb_enable_lpm() for enabling/disabling device-initiated U1/U2. Signed-off-by:

Thinh Nguyen <thinhn@synopsys.com> Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/core/hub.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -4139,7 +4139,7 @@ int usb_disable_lpm(struct usb_device *udev)
		if (!udev \|\| !udev->parent \|\|
		udev->speed < USB_SPEED_SUPER \|\|
		!udev->lpm_capable \|\|
		udev->state < USB_STATE_DEFAULT)
		udev->state < USB_STATE_CONFIGURED)
		return 0;

		hcd = bus_to_hcd(udev->bus);
		@@ -4198,7 +4198,7 @@ void usb_enable_lpm(struct usb_device *udev)
		if (!udev \|\| !udev->parent \|\|
		udev->speed < USB_SPEED_SUPER \|\|
		!udev->lpm_capable \|\|
		udev->state < USB_STATE_DEFAULT)
		udev->state < USB_STATE_CONFIGURED)
		return;

		udev->lpm_disable_count--;

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