linux-kernel - Re: [PATCH 16/26] IB/ocrdma: Adjust a null pointer check in ocrdma_alloc

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Message-ID: <20170309114213.GC3307@yuval-lap>
Date:   Thu, 9 Mar 2017 13:42:14 +0200
From:   Yuval Shaia <yuval.shaia@...cle.com>
To:     SF Markus Elfring <elfring@...rs.sourceforge.net>
Cc:     linux-rdma@...r.kernel.org,
        Devesh Sharma <devesh.sharma@...gotech.com>,
        Doug Ledford <dledford@...hat.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>,
        Sean Hefty <sean.hefty@...el.com>,
        Selvin Xavier <selvin.xavier@...gotech.com>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 16/26] IB/ocrdma: Adjust a null pointer check in
 ocrdma_alloc_resources()

On Wed, Mar 08, 2017 at 02:15:34PM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@...rs.sourceforge.net>
> Date: Tue, 7 Mar 2017 22:34:33 +0100
> 
> The script "checkpatch.pl" pointed information out like the following.
> 
> Comparison to NULL could be written "!dev->stag_arr".
> 
> Thus fix the affected source code place.
> 
> Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
> ---
>  drivers/infiniband/hw/ocrdma/ocrdma_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> index 93113feeb2d5..fbf672c79d5f 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> @@ -238,7 +238,7 @@ static int ocrdma_alloc_resources(struct ocrdma_dev *dev)
>  
>  	dev->stag_arr = kcalloc(OCRDMA_MAX_STAG, sizeof(*dev->stag_arr),
>  				GFP_KERNEL);
> -	if (dev->stag_arr == NULL)
> +	if (!dev->stag_arr)
>  		goto alloc_err;

Reviewed-by: Yuval Shaia <yuval.shaia@...cle.com>

>  
>  	ocrdma_alloc_pd_pool(dev);
> -- 
> 2.12.0
> 
> --
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