linux-kernel - Re: [PATCH] interconnect: qcom: icc-rpmh: Fix an error handling path in qcom_icc_rpmh

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Date:   Wed, 23 Nov 2022 08:32:26 +0100
From:   "Luca Weiss" <luca.weiss@...rphone.com>
To:     "Christophe JAILLET" <christophe.jaillet@...adoo.fr>,
        "Andy Gross" <agross@...nel.org>,
        "Bjorn Andersson" <andersson@...nel.org>,
        "Konrad Dybcio" <konrad.dybcio@...aro.org>,
        "Georgi Djakov" <djakov@...nel.org>
Cc:     <linux-kernel@...r.kernel.org>, <kernel-janitors@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: Re: [PATCH] interconnect: qcom: icc-rpmh: Fix an error handling
 path in qcom_icc_rpmh_probe()

Hi Christophe,

On Tue Nov 22, 2022 at 10:45 PM CET, Christophe JAILLET wrote:
> > I believe the same needs to be applied to icc-rpm.c.
>
> Their are other issues in the error handling path of this file.
>
> 1)	if (desc->has_bus_pd) {
> 		ret = dev_pm_domain_attach(dev, true);
> is unbalanced, both in the error handling path and in the remove function.
>
>
> 2)	clk_bulk_prepare_enable()
> is not balanced in all error handling paths.
>
>
> 3) the same issue about error handling if of_platform_populate() fails.
>
>
> These issues have been introduced in different commits.
>
>
> Would you prefer several patches, each related to a given Fixes: tag, or 
> one bigger "fix all error handling paths"?

I don't really have an opinion on this, I guess if the issues were
introduced in different commits, make separate fixes?
If it's the wrong way somebody will tell you anyways ;)

Regards
Luca

>
>
> Anyway, fixing the points above would require moving some code around. 
> Usually I try to avoid it, because it is not always easy to see 
> associated side effects.
>
> CJ