Re: [PATCH] ath10k: fix the status check and wrong return

[Tom Psyborg]

On 14/08/2020, Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx> wrote:
> In the function ath10k_ahb_clock_init(), devm_clk_get() doesn't
> return NULL. Thus use IS_ERR() and PTR_ERR() to validate
> the returned value instead of IS_ERR_OR_NULL().
>
> Signed-off-by: Zhang Shengju <zhangshengju@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/net/wireless/ath/ath10k/ahb.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/ahb.c
> b/drivers/net/wireless/ath/ath10k/ahb.c
> index ed87bc00f..ea669af6a 100644
> --- a/drivers/net/wireless/ath/ath10k/ahb.c
> +++ b/drivers/net/wireless/ath/ath10k/ahb.c
> @@ -87,24 +87,24 @@ static int ath10k_ahb_clock_init(struct ath10k *ar)
>  	dev = &ar_ahb->pdev->dev;
>
>  	ar_ahb->cmd_clk = devm_clk_get(dev, "wifi_wcss_cmd");
> -	if (IS_ERR_OR_NULL(ar_ahb->cmd_clk)) {
> +	if (IS_ERR(ar_ahb->cmd_clk)) {
>  		ath10k_err(ar, "failed to get cmd clk: %ld\n",
>  			   PTR_ERR(ar_ahb->cmd_clk));
> -		return ar_ahb->cmd_clk ? PTR_ERR(ar_ahb->cmd_clk) : -ENODEV;
> +		return PTR_ERR(ar_ahb->cmd_clk);
>  	}
>
>  	ar_ahb->ref_clk = devm_clk_get(dev, "wifi_wcss_ref");
> -	if (IS_ERR_OR_NULL(ar_ahb->ref_clk)) {
> +	if (IS_ERR(ar_ahb->ref_clk)) {
>  		ath10k_err(ar, "failed to get ref clk: %ld\n",
>  			   PTR_ERR(ar_ahb->ref_clk));
> -		return ar_ahb->ref_clk ? PTR_ERR(ar_ahb->ref_clk) : -ENODEV;
> +		return PTR_ERR(ar_ahb->ref_clk);
>  	}
>
>  	ar_ahb->rtc_clk = devm_clk_get(dev, "wifi_wcss_rtc");
> -	if (IS_ERR_OR_NULL(ar_ahb->rtc_clk)) {
> +	if (IS_ERR(ar_ahb->rtc_clk)) {
>  		ath10k_err(ar, "failed to get rtc clk: %ld\n",
>  			   PTR_ERR(ar_ahb->rtc_clk));
> -		return ar_ahb->rtc_clk ? PTR_ERR(ar_ahb->rtc_clk) : -ENODEV;
> +		return PTR_ERR(ar_ahb->rtc_clk);
>  	}
>
>  	return 0;
> --
> 2.20.1.windows.1
>
>
>
>

Hi

You should've include which HW/FW combination you tested this on