linux-kernel - Re: [PATCH 3/3] Add support for the generic backlight device to the TOSHIBA ACPI driver

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Date:	Fri, 13 Oct 2006 14:56:58 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Holger Macht <hmacht@...e.de>
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	len.brown@...el.com
Subject: Re: [PATCH 3/3] Add support for the generic backlight device to the
 TOSHIBA ACPI driver

On Fri, 13 Oct 2006 12:24:19 +0200
Holger Macht <hmacht@...e.de> wrote:

> +static int set_lcd(int value)
> +{
> +	u32 hci_result;
> +
> +	value = value << HCI_LCD_BRIGHTNESS_SHIFT;
> +	hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
> +	if (hci_result != HCI_SUCCESS)
> +		return -EFAULT;
> +
> +	return 0;

-EFAULT seems a bit random.  Would -EIO be more appropriate?
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