[PATCH 3.16 064/305] USB: serial: cypress_m8: fix interrupt-out transfer length

[Ben Hutchings]

3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@xxxxxxxxxx>

commit 56445eef55cb5904096fed7a73cf87b755dfffc7 upstream.

Fix interrupt-out transfer length which was being set to the
transfer-buffer length rather than the size of the outgoing packet.

Note that no slab data was leaked as the whole transfer buffer is always
cleared before each transfer.

Fixes: 9aa8dae7b1fa ("cypress_m8: use usb_fill_int_urb where appropriate")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/usb/serial/cypress_m8.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -773,7 +773,7 @@ send:
 
 	usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,
 		usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),
-		port->interrupt_out_buffer, port->interrupt_out_size,
+		port->interrupt_out_buffer, actual_size,
 		cypress_write_int_callback, port, priv->write_urb_interval);
 	result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
 	if (result) {