[85/91] USB: ftdi_sio: fix endianess of max packet size

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From: Greg KH
Date: Tuesday, August 24, 2010 - 3:42 pm

2.6.34-stable review patch.  If anyone has any objections, please let us know.

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

From: Michael Wileczka <mikewileczka@yahoo.com>

commit d1ab903d2552b2362339b19203c7f01c797cb316 upstream.

The USB max packet size (always little-endian) was not being byte
swapped on big-endian systems.

Applicable since [USB: ftdi_sio: fix hi-speed device packet size calculation] approx 2.6.31

Signed-off-by: Michael Wileczka <mikewileczka@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/serial/ftdi_sio.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1399,7 +1399,7 @@ static void ftdi_set_max_packet_size(str
 	}
 
 	/* set max packet size based on descriptor */
-	priv->max_packet_size = ep_desc->wMaxPacketSize;
+	priv->max_packet_size = le16_to_cpu(ep_desc->wMaxPacketSize);
 
 	dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
 }


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[85/91] USB: ftdi_sio: fix endianess of max packet size, Greg KH, (Tue Aug 24, 3:42 pm)