linux-kernel - Re: [PATCH] usb: ehci-s5p: fix: Fix null pointer dereferencing

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Date:	Tue, 09 Apr 2013 16:31:18 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Vivek Gautam <gautam.vivek@...sung.com>
CC:	linux-usb@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
	stern@...land.harvard.edu, kgene.kim@...sung.com,
	Manjunath Goudar <manjunath.goudar@...aro.org>,
	Arnd Bergmann <arnd@...db.de>, Jingoo Han <jg1.han@...sung.com>
Subject: Re: [PATCH] usb: ehci-s5p: fix: Fix null pointer dereferencing

Hello.

On 09-04-2013 13:21, Vivek Gautam wrote:

> 7edb3da makes ehci-s5p as a separate driver. But,

    Please also provide the summary line of that commit in parens.

> it raised an issue with its driver data.
> Now that 's5p_ehci_hcd' doesn't maintain pointer to 'usb_hcd'
> and s5p_ehci is nothing but a pointer to hcd->priv;
> add hcd to the driver data rather than s5p_ehci.

> This fixes issues with null pointer dereferencing in
> s5p_ehci_shutdown(), s5p_ehci_suspend(), s5p_ehci_resume().

> Signed-off-by: Vivek Gautam <gautam.vivek@...sung.com>
> CC: Manjunath Goudar <manjunath.goudar@...aro.org>
> CC: Arnd Bergmann <arnd@...db.de>
> CC: Jingoo Han <jg1.han@...sung.com>

WBR, Sergei


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