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 three requests which erroneously used usb_rcvctrlpipe().

Fixes: f7a33e608d9a ("USB: serial: add quatech2 usb to serial driver") Cc: stable@vger.kernel.org # 3.5 Signed-off-by: Johan Hovold johan@kernel.org ---

Changes in v2 - fix also the request in attach

drivers/usb/serial/quatech2.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 3b5f2032ecdb..b0bb889f002c 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -416,7 +416,7 @@ static void qt2_close(struct usb_serial_port *port)

/* flush the port transmit buffer */ i = usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), + usb_sndctrlpipe(serial->dev, 0), QT2_FLUSH_DEVICE, 0x40, 1, port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);

@@ -426,7 +426,7 @@ static void qt2_close(struct usb_serial_port *port)

/* flush the port receive buffer */ i = usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), + usb_sndctrlpipe(serial->dev, 0), QT2_FLUSH_DEVICE, 0x40, 0, port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);

@@ -639,7 +639,7 @@ static int qt2_attach(struct usb_serial *serial) int status;

/* power on unit */ - status = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + status = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 0xc2, 0x40, 0x8000, 0, NULL, 0, QT2_USB_TIMEOUT); if (status < 0) {