linux-kernel - RE: [PATCH] input: spi: Driver for SPI data stream driven vibrator

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Date:	Mon, 8 Nov 2010 12:08:07 +0100
From:	<ilkka.koskinen@...ia.com>
To:	<alan@...rguk.ukuu.org.uk>
CC:	<linux-input@...r.kernel.org>, <dmitry.torokhov@...il.com>,
	<linux-kernel@...r.kernel.org>,
	<spi-devel-general@...ts.sourceforge.net>
Subject: RE: [PATCH] input: spi: Driver for SPI data stream driven vibrator

Hi,

>From: ext Alan Cox [mailto:alan@...rguk.ukuu.org.uk]
>Sent: 08 November, 2010 01:52
>
>> +	datalen = p->custom_len * sizeof(p->custom_data[0]);
>
>signed
>
>> +	if (datalen > MAX_EFFECT_SIZE) {
>
>unsigned

It should be unsigned. I'll fix it.

>> +	memcpy(einfo->buf, p->custom_data, datalen);
>
>ungood

Yep, that's clearly wrong too. Should be copy_from_user() I suppose.

Thanks, Ilkka

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