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Message-ID: <4A6F3AEA.7090102@grupopie.com>
Date: Tue, 28 Jul 2009 18:52:42 +0100
From: Paulo Marques <pmarques@...popie.com>
To: Julia Lawall <julia@...u.dk>
CC: jwoithe@...sics.adelaide.edu.au, linux-acpi@...r.kernel.org,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 6/12] drivers/platform/x86: Correct redundant test
Julia Lawall wrote:
> [...]
> ---
> drivers/platform/x86/fujitsu-laptop.c | 3 ---
> 1 files changed, 0 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
> index 218b9a1..5306901 100644
> --- a/drivers/platform/x86/fujitsu-laptop.c
> +++ b/drivers/platform/x86/fujitsu-laptop.c
> @@ -745,9 +745,6 @@ static int acpi_fujitsu_remove(struct acpi_device *device, int type)
>
> fujitsu = acpi_driver_data(device);
>
> - if (!device || !acpi_driver_data(device))
> - return -EINVAL;
> -
Shouldn't this still do a:
if (!fujitsu)
return -EINVAL;
to avoid dereferencing a NULL pointer below?
> fujitsu->acpi_handle = NULL;
>
> return 0;
--
Paulo Marques - www.grupopie.com
"All I ask is a chance to prove that money can't make me happy."
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