Re: [PATCH -next] PCI: hotplug: Use kmemdup rather than duplicating its implementation in pnv_php_add_devtree()

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On Thu, Sep 27, 2018 at 06:52:21AM +0000, YueHaibing wrote:
> Use kmemdup rather than duplicating its implementation
> 
> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>

Applied with Michael's ack to pci/hotplug for v4.20, thanks!

> ---
>  drivers/pci/hotplug/pnv_php.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/hotplug/pnv_php.c b/drivers/pci/hotplug/pnv_php.c
> index 5070620..ee54f5b 100644
> --- a/drivers/pci/hotplug/pnv_php.c
> +++ b/drivers/pci/hotplug/pnv_php.c
> @@ -275,14 +275,13 @@ static int pnv_php_add_devtree(struct pnv_php_slot *php_slot)
>  		goto free_fdt1;
>  	}
>  
> -	fdt = kzalloc(fdt_totalsize(fdt1), GFP_KERNEL);
> +	fdt = kmemdup(fdt1, fdt_totalsize(fdt1), GFP_KERNEL);
>  	if (!fdt) {
>  		ret = -ENOMEM;
>  		goto free_fdt1;
>  	}
>  
>  	/* Unflatten device tree blob */
> -	memcpy(fdt, fdt1, fdt_totalsize(fdt1));
>  	dt = of_fdt_unflatten_tree(fdt, php_slot->dn, NULL);
>  	if (!dt) {
>  		ret = -EINVAL;
> 
> 
> 



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