On Mon, 2015-07-27 at 08:50 +0200, Petr Tesarik wrote:
> I don't understand. While you're right that I copied this part from
> Sillicon Labs' driver without much thinking, and &spriv->bPartNumber
> can be used directly, I can't see any DMA on stack. FWIW
> cp210x_control_msg always allocates a buffer using kcalloc:
>
> buf = kcalloc(length, sizeof(__le32), GFP_KERNEL);
> /* ... */
> result = usb_control_msg(serial->dev,
> usb_rcvctrlpipe(serial->dev, 0),
> request, requesttype, value,
> spriv->bInterfaceNumber, buf, size,
> timeout);
>
> Is that what you mean?
Yes, sorry, that part wasn't so clear from the previous patch.
Sorry
Oliver
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