linux-hardening - Re: [PATCH v4 05/11] perf/x86/rapl: Move cpumask variable to rapl

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Message-ID: <96c20328-6227-4076-b6f3-98e05319c729@amd.com>
Date: Fri, 12 Jul 2024 09:00:49 +0530
From: Dhananjay Ugwekar <Dhananjay.Ugwekar@....com>
To: "Zhang, Rui" <rui.zhang@...el.com>,
 "alexander.shishkin@...ux.intel.com" <alexander.shishkin@...ux.intel.com>,
 "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
 "Hunter, Adrian" <adrian.hunter@...el.com>,
 "mingo@...hat.com" <mingo@...hat.com>,
 "irogers@...gle.com" <irogers@...gle.com>,
 "tglx@...utronix.de" <tglx@...utronix.de>,
 "gustavoars@...nel.org" <gustavoars@...nel.org>,
 "kan.liang@...ux.intel.com" <kan.liang@...ux.intel.com>,
 "kees@...nel.org" <kees@...nel.org>,
 "mark.rutland@....com" <mark.rutland@....com>,
 "peterz@...radead.org" <peterz@...radead.org>, "bp@...en8.de"
 <bp@...en8.de>, "acme@...nel.org" <acme@...nel.org>,
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 "namhyung@...nel.org" <namhyung@...nel.org>
Cc: "ravi.bangoria@....com" <ravi.bangoria@....com>,
 "kprateek.nayak@....com" <kprateek.nayak@....com>,
 "gautham.shenoy@....com" <gautham.shenoy@....com>,
 "linux-perf-users@...r.kernel.org" <linux-perf-users@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "linux-hardening@...r.kernel.org" <linux-hardening@...r.kernel.org>,
 "sandipan.das@....com" <sandipan.das@....com>,
 "ananth.narayan@....com" <ananth.narayan@....com>,
 "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v4 05/11] perf/x86/rapl: Move cpumask variable to
 rapl_pmus struct



On 7/12/2024 8:37 AM, Zhang, Rui wrote:
>> @@ -710,6 +710,9 @@ static int __init init_rapl_pmus(void)
>>         rapl_pmus = kzalloc(struct_size(rapl_pmus, rapl_pmu,
>> nr_rapl_pmu), GFP_KERNEL);
>>         if (!rapl_pmus)
>>                 return -ENOMEM;
>> +
>> +       if (!alloc_cpumask_var(&rapl_pmus->cpumask, GFP_KERNEL))
>> +               return -ENOMEM;
> 
> missing free_cpumask_var() in cleanup_rapl_pmus()?

Good catch, I had it in one draft of the patch, but then it got 
missed in the final one.

Will fix this

Thanks,
Dhananjay

> 
> thanks,
> rui
> 
>