linux-kernel - Re: [PATCH 2/2][Patch-next -v2] ACPI, APEI, HEST Fix the unsuitable usage of platform

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Message-ID: <1282105081.2744.1539.camel@yhuang-dev>
Date:	Wed, 18 Aug 2010 12:18:01 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Jin Dongming <jin.dongming@...css.fujitsu.com>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Andi Kleen <andi@...stfloor.org>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	ACPI <linux-acpi@...r.kernel.org>,
	LKLM <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2][Patch-next -v2] ACPI, APEI, HEST Fix the
 unsuitable usage of platform_data.

On Wed, 2010-08-18 at 07:49 +0800, Jin Dongming wrote:
> platform_data in hest_parse_ghes() is used for saving the address of entry
> information of erst_tab. When the device is failed to be added, platform_data
> will be freed by platform_device_put(). But the value saved in platform_data
> should not be freed here. If it is done, it will make system panic.
> 
> So I think platform_data should save the address of allocated memory
> which saves entry information of erst_tab.
> 
> This patch fixed it and I confirmed it on x86_64 next-tree.
> 
> Signed-off-by: Jin Dongming <jin.dongming@...css.fujitsu.com>
Acked-by: Huang Ying <ying.huang@...el.com>

Best Regards,
Huang Ying


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