linux-kernel - Re: [PATCH 10/14] scsi: ufs: core: Add OPP support for scaling clocks and regulators

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Date:   Thu, 13 Jul 2023 10:37:11 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     vireshk@...nel.org, nm@...com, sboyd@...nel.org,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        cw00.choi@...sung.com, andersson@...nel.org,
        konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        quic_asutoshd@...cinc.com, quic_cang@...cinc.com,
        quic_nitirawa@...cinc.com, quic_narepall@...cinc.com,
        quic_bhaskarv@...cinc.com, quic_richardp@...cinc.com,
        quic_nguyenb@...cinc.com, quic_ziqichen@...cinc.com,
        bmasney@...hat.com, krzysztof.kozlowski@...aro.org
Subject: Re: [PATCH 10/14] scsi: ufs: core: Add OPP support for scaling
 clocks and regulators

On Thu, Jul 13, 2023 at 09:31:42AM +0530, Viresh Kumar wrote:
> On 12-07-23, 16:02, Manivannan Sadhasivam wrote:
> > +static int ufshcd_opp_set_rate(struct ufs_hba *hba, unsigned long freq)
> > +{
> > +	struct dev_pm_opp *opp;
> > +
> > +	opp = dev_pm_opp_find_freq_floor_indexed(hba->dev,
> > +						 &freq, 0);
> > +	if (IS_ERR(opp))
> > +		return PTR_ERR(opp);
> > +
> > +	dev_pm_opp_put(opp);
> 
> You can't free the OPP while you are still using it :)
> 

Ah... will fix it!

- Mani

> > +
> > +	return dev_pm_opp_set_opp(hba->dev, opp);
> > +}
> 
> -- 
> viresh

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