From mboxrd@z Thu Jan  1 00:00:00 1970
From: catalin.marinas@arm.com (Catalin Marinas)
Date: Mon, 19 Jan 2015 11:50:17 +0000
Subject: [PATCH v7 07/17] ARM64 / ACPI: Disable ACPI if FADT revision is
 less than 5.1
In-Reply-To: <1421247905-3749-8-git-send-email-hanjun.guo@linaro.org>
References: <1421247905-3749-1-git-send-email-hanjun.guo@linaro.org>
 <1421247905-3749-8-git-send-email-hanjun.guo@linaro.org>
Message-ID: <20150119115017.GH11835@e104818-lin.cambridge.arm.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, Jan 14, 2015 at 03:04:55PM +0000, Hanjun Guo wrote:
> --- a/arch/arm64/kernel/acpi.c
> +++ b/arch/arm64/kernel/acpi.c
[...]
> @@ -64,8 +88,13 @@ void __init acpi_boot_table_init(void)
>  		return;
>  
>  	/* Initialize the ACPI boot-time table parser. */
> -	if (acpi_table_init())
> +	if (acpi_table_init()) {
>  		disable_acpi();
> +		return;
> +	}
> +
> +	if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt))
> +		pr_err("Can't find FADT or error happened during parsing FADT\n");
>  }

Do you need a disable_acpi() call here as well?

-- 
Catalin