Re: [PATCH] ACPI: nfit: check dcr immediately following its assignment codes

[Verma, Vishal L]

On Wed, 2018-08-08 at 10:50 -0400, Ocean He wrote:
> From: Ocean He <hehy1@xxxxxxxxxx>
> 
> In commit 6697b2cf69d43632 ("nfit: fix multi-interface dimm handling,
> acpi6.1 compatibility"), the check codes of dcr were just following its
> assignment codes. But they were separated by commit ad9ac5e1957531a8
> ("nfit: always associate flush hints").
> 
> Just change the check codes back to original position, without function
> change.
> 
> Signed-off-by: Ocean He <hehy1@xxxxxxxxxx>
> ---
>  drivers/acpi/nfit/core.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)

This seems like unnecessary churn. Does it cause any problems in
practice?

> 
> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
> index 7c47900..c9e4c9a 100644
> --- a/drivers/acpi/nfit/core.c
> +++ b/drivers/acpi/nfit/core.c
> @@ -1078,6 +1078,12 @@ static int __nfit_mem_init(struct acpi_nfit_desc *acpi_desc,
>  			break;
>  		}
>  
> +		if (dcr && !nfit_mem->dcr) {
> +			dev_err(acpi_desc->dev, "SPA %d missing DCR %d\n",
> +					spa->range_index, dcr);
> +			return -ENODEV;
> +		}
> +
>  		list_for_each_entry(nfit_flush, &acpi_desc->flushes, list) {
>  			struct acpi_nfit_flush_address *flush;
>  			u16 i;
> @@ -1101,12 +1107,6 @@ static int __nfit_mem_init(struct acpi_nfit_desc *acpi_desc,
>  			break;
>  		}
>  
> -		if (dcr && !nfit_mem->dcr) {
> -			dev_err(acpi_desc->dev, "SPA %d missing DCR %d\n",
> -					spa->range_index, dcr);
> -			return -ENODEV;
> -		}
> -
>  		if (type == NFIT_SPA_DCR) {
>  			struct nfit_idt *nfit_idt;
>  			u16 idt_idx;