Re: [PATCH 2/3] iommu/pamu: Use kzfree rather than its implementation

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On Wed, Sep 04, 2019 at 11:01:18AM +0800, zhong jiang wrote:
> Use kzfree instead of memset() + kfree().
> 
> Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
> ---
>  drivers/iommu/fsl_pamu.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/iommu/fsl_pamu.c b/drivers/iommu/fsl_pamu.c
> index cde281b..ca6d147 100644
> --- a/drivers/iommu/fsl_pamu.c
> +++ b/drivers/iommu/fsl_pamu.c
> @@ -1174,10 +1174,8 @@ static int fsl_pamu_probe(struct platform_device *pdev)
>  	if (irq != NO_IRQ)
>  		free_irq(irq, data);
>  
> -	if (data) {
> -		memset(data, 0, sizeof(struct pamu_isr_data));
> -		kfree(data);
> -	}
> +	if (data)
> +		kzfree(data);

kzfree() is doing its own NULL-ptr check, no need to do it here.

Regards,

	Joerg



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