linux-kernel - Re: [PATCH] i2o/memory.c : Use kstrdup

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Date:	Tue, 10 Jun 2014 17:45:24 +0100
From:	Alan Cox <alan@...ux.intel.com>
To:	Himangi Saraogi <himangi774@...il.com>
Cc:	linux-kernel@...r.kernel.org, julia.lawall@...6.fr
Subject: Re: [PATCH] i2o/memory.c : Use kstrdup

On Tue, 2014-06-10 at 21:41 +0530, Himangi Saraogi wrote:
> Use kstrdup when the goal of an allocation is copy a string into the
> allocated region.
> 
> The Coccinelle semantic patch that makes this change is as follows:
> 
> // <smpl>
> @@
> expression from,to;
> expression flag,E1,E2;
> statement S;
> @@
> 
> -  to = kmalloc(strlen(from) + 1,flag);
> +  to = kstrdup(from, flag);
>    ... when != \(from = E1 \| to = E1 \)
>    if (to==NULL || ...) S
>    ... when != \(from = E2 \| to = E2 \)
> -  strcpy(to, from);
> // </smpl>
> 
> Signed-off-by: Himangi Saraogi <himangi774@...il.com>
> ---
> To send to: linux-kernel@...r.kernel.org
>  drivers/message/i2o/memory.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)


I no longer have any I2O hardware so I'm unable to test this. Looks
right but does anyone actually still use these drivers ????

Alan


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