USB: mos7720: fix big-endian control requests
Johan Hovold [Mon, 19 Aug 2013 11:05:45 +0000 (13:05 +0200)]
commit 3b716caf190ccc6f2a09387210e0e6a26c1d81a4 upstream.

Fix endianess bugs in parallel-port code which caused corrupt
control-requests to be issued on big-endian machines.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/mos7720.c

index 6577b7d..0f16bf6 100644 (file)
@@ -382,8 +382,8 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,
        }
        urbtrack->setup->bRequestType = (__u8)0x40;
        urbtrack->setup->bRequest = (__u8)0x0e;
-       urbtrack->setup->wValue = get_reg_value(reg, dummy);
-       urbtrack->setup->wIndex = get_reg_index(reg);
+       urbtrack->setup->wValue = cpu_to_le16(get_reg_value(reg, dummy));
+       urbtrack->setup->wIndex = cpu_to_le16(get_reg_index(reg));
        urbtrack->setup->wLength = 0;
        usb_fill_control_urb(urbtrack->urb, usbdev,
                             usb_sndctrlpipe(usbdev, 0),