Re: [PATCH5b51a54ae2fa1cc8459b68a28b3c8ca7b7203994] PM / devfreq: mtk-cci: Fix variable deferencing before NULL check

[Chanwoo Choi]

On 23. 5. 18. 17:40, Sukrut Bellary wrote:
> smatch warning:
> drivers/devfreq/mtk-cci-devfreq.c:135 mtk_ccifreq_target()
> warn: variable dereferenced before check 'drv' (see line 130)
> 
> This is based on static analysis only. Compilation tested.
> 
> Signed-off-by: Sukrut Bellary <sukrut.bellary@xxxxxxxxx>
> ---
>  drivers/devfreq/mtk-cci-devfreq.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/devfreq/mtk-cci-devfreq.c b/drivers/devfreq/mtk-cci-devfreq.c
> index e5458ada5197..6354622eda65 100644
> --- a/drivers/devfreq/mtk-cci-devfreq.c
> +++ b/drivers/devfreq/mtk-cci-devfreq.c
> @@ -127,7 +127,7 @@ static int mtk_ccifreq_target(struct device *dev, unsigned long *freq,
>  			      u32 flags)
>  {
>  	struct mtk_ccifreq_drv *drv = dev_get_drvdata(dev);
> -	struct clk *cci_pll = clk_get_parent(drv->cci_clk);
> +	struct clk *cci_pll;
>  	struct dev_pm_opp *opp;
>  	unsigned long opp_rate;
>  	int voltage, pre_voltage, inter_voltage, target_voltage, ret;
> @@ -139,6 +139,7 @@ static int mtk_ccifreq_target(struct device *dev, unsigned long *freq,
>  		return 0;
>  
>  	inter_voltage = drv->inter_voltage;
> +	cci_pll = clk_get_parent(drv->cci_clk);
>  
>  	opp_rate = *freq;
>  	opp = devfreq_recommended_opp(dev, &opp_rate, 1);

Applied it. Thanks.

-- 
Best Regards,
Samsung Electronics
Chanwoo Choi