patch "USB: lvtest: return proper error code in probe" added to usb-linus

This is a note to let you know that I've just added the patch titled

USB: lvtest: return proper error code in probe

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 531412492ce93ea29b9ca3b4eb5e3ed771f851dd Mon Sep 17 00:00:00 2001
From: Evgeny Novikov <[email protected]>
Date: Wed, 5 Aug 2020 12:06:43 +0300
Subject: USB: lvtest: return proper error code in probe

lvs_rh_probe() can return some nonnegative value from usb_control_msg() when it is less than "USB_DT_HUB_NONVAR_SIZE + 2" that is considered as a failure. Make lvs_rh_probe() return -EINVAL in this case.

Found by Linux Driver Verification project (linuxtesting.org).

---
 drivers/usb/misc/lvstest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 407fe7570f3b..f8686139d6f3 100644
@@ -426,7 +426,7 @@ static int lvs_rh_probe(struct usb_interface *intf,
 			USB_DT_SS_HUB_SIZE, USB_CTRL_GET_TIMEOUT);
 	if (ret < (USB_DT_HUB_NONVAR_SIZE + 2)) {
 		dev_err(&hdev->dev, "wrong root hub descriptor read %d\n", ret);
-		return ret;
+		return ret < 0 ? ret : -EINVAL;
 	}
 
 	/* submit urb to poll interrupt endpoint */

2.28.0