linux-kernel - [PATCH] USB: trancevibrator: fix control-request direction

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Date:   Fri, 21 May 2021 15:31:09 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan@...nel.org>, stable@...r.kernel.org
Subject: [PATCH] USB: trancevibrator: fix control-request direction

The direction of the pipe argument must match the request-type direction
bit or control requests may fail depending on the host-controller-driver
implementation.

Fix the set-speed request which erroneously used USB_DIR_IN and update
the default timeout argument to match (same value).

Fixes: 5638e4d92e77 ("USB: add PlayStation 2 Trance Vibrator driver")
Cc: stable@...r.kernel.org      # 2.6.19
Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/usb/misc/trancevibrator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c
index a3dfc77578ea..26baba3ab7d7 100644
--- a/drivers/usb/misc/trancevibrator.c
+++ b/drivers/usb/misc/trancevibrator.c
@@ -61,9 +61,9 @@ static ssize_t speed_store(struct device *dev, struct device_attribute *attr,
 	/* Set speed */
 	retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0),
 				 0x01, /* vendor request: set speed */
-				 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
+				 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 				 tv->speed, /* speed value */
-				 0, NULL, 0, USB_CTRL_GET_TIMEOUT);
+				 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
 	if (retval) {
 		tv->speed = old;
 		dev_dbg(&tv->udev->dev, "retval = %d\n", retval);
-- 
2.26.3