linux-kernel - RE: Oops in ACPI with git latest

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Date:	Thu, 23 Oct 2008 20:27:22 -0500
From:	James Bottomley <James.Bottomley@...senPartnership.com>
To:	"Moore, Robert" <robert.moore@...el.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Len Brown <lenb@...nel.org>
Subject: RE: Oops in ACPI with git latest

On Thu, 2008-10-23 at 15:34 -0700, Moore, Robert wrote:
> +	if (!output.pointer)
> +		return AE_NULL_OBJECT;
> +
> 
> This probably won't work. acpi_evaluate_object currently doesn't touch the pointer parameter if there is no return value, it only sets the length to zero.

Actually, it does.

> So, you might try this:
> 
> +	if (!output.length)
> +		return AE_NULL_OBJECT;
> +

This also works.

James


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