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Message-Id: <20210810173004.113286146@linuxfoundation.org>
Date:   Tue, 10 Aug 2021 19:30:04 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Maxim Devaev <mdevaev@...il.com>
Subject: [PATCH 5.13 096/175] usb: gadget: f_hid: idle uses the highest byte for duration

From: Maxim Devaev <mdevaev@...il.com>

commit fa20bada3f934e3b3e4af4c77e5b518cd5a282e5 upstream.

SET_IDLE value must be shifted 8 bits to the right to get duration.
This confirmed by USBCV test.

Fixes: afcff6dc690e ("usb: gadget: f_hid: added GET_IDLE and SET_IDLE handlers")
Cc: stable <stable@...r.kernel.org>
Signed-off-by: Maxim Devaev <mdevaev@...il.com>
Link: https://lore.kernel.org/r/20210727185800.43796-1-mdevaev@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/gadget/function/f_hid.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -573,7 +573,7 @@ static int hidg_setup(struct usb_functio
 		  | HID_REQ_SET_IDLE):
 		VDBG(cdev, "set_idle\n");
 		length = 0;
-		hidg->idle = value;
+		hidg->idle = value >> 8;
 		goto respond;
 		break;
 


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