linux-kernel - Re: [PATCH 1/2] lustre/mdc_lib: fix possible null pointer dereference

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Message-ID: <20140305185048.GC26722@mwanda>
Date:	Wed, 5 Mar 2014 21:53:06 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"Maxin B. John" <maxin.john@...il.com>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	andreas.dilger@...el.com, gregkh@...uxfoundation.org,
	bergwolf@...il.com, alexey.zhuravlev@...el.com,
	josh@...htriplett.org, dulshani.gunawardhana89@...il.com,
	jinshan.xiong@...el.com, "Maxin B. John" <maxin.john@...a.com>
Subject: Re: [PATCH 1/2] lustre/mdc_lib: fix possible null pointer dereference

On Wed, Mar 05, 2014 at 02:04:35PM +0100, Maxin B. John wrote:
> From: "Maxin B. John" <maxin.john@...a.com>
> 
> cppcheck reported possible null pointer dereference in mdc_lib.c
> 
> [lustre/lustre/mdc/mdc_lib.c:233]: (error) Possible null pointer dereference
> : op_data - otherwise it is redundant to check if op_data is null at line 226
> 

There is only one caller and "op_data" is not NULL.

regards,
dan carpenter

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