From: Peter Chen <peter.chen@freescale.com>
Date: Mon, 29 Sep 2014 02:09:31 +0000 (+0800)
Subject: usb: core: return -ENOTSUPP for all targeted hosts
X-Git-Tag: v4.14-rc1~6740^2~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e5a9d62199af2ae6c4e7aa13614199b6dbaf5eb2;p=platform%2Fkernel%2Flinux-rpi.git

usb: core: return -ENOTSUPP for all targeted hosts

The current code only returns -ENOTSUPP for OTG host, but in fact,
embedded host also needs to returns -ENOTSUPP if the peripheral
is not at TPL.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 374b3f9..1d21b2c 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2319,11 +2319,12 @@ static int usb_enumerate_device(struct usb_device *udev)
 		return err;
 
 	if (IS_ENABLED(CONFIG_USB_OTG_WHITELIST) && hcd->tpl_support &&
-		!is_targeted(udev) && IS_ENABLED(CONFIG_USB_OTG)) {
+		!is_targeted(udev)) {
 		/* Maybe it can talk to us, though we can't talk to it.
 		 * (Includes HNP test device.)
 		 */
-		if (udev->bus->b_hnp_enable || udev->bus->is_b_host) {
+		if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable
+			|| udev->bus->is_b_host)) {
 			err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND);
 			if (err < 0)
 				dev_dbg(&udev->dev, "HNP fail, %d\n", err);