linux-kernel - Re: [PATCH v1 1/1] cpufreq: mediatek-hw: Fix double devm

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Message-ID: <20211227041531.5w5lhrk4a7jzz64x@vireshk-i7>
Date:   Mon, 27 Dec 2021 09:45:31 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Hector Yuan <hector.yuan@...iatek.com>
Cc:     linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        linux-kernel@...r.kernel.org, wsd_upstream@...iatek.com
Subject: Re: [PATCH v1 1/1] cpufreq: mediatek-hw: Fix double devm_remap in
 hotplug case

On 29-10-21, 19:42, Hector Yuan wrote:
> From: "Hector.Yuan" <hector.yuan@...iatek.com>
> 
> When hotpluging policy cpu, cpu policy init will be called multiple times.
> Unplug CPU7 -> CPU6 -> CPU5 -> CPU4, then plug CPU4 again.
> In this case, devm_remap will double remap and resource allocate fail.
> So replace devm_remap to ioremap and release resources in cpu policy exit.
> 
> Signed-off-by: Hector.Yuan <hector.yuan@...iatek.com>
> ---
>  drivers/cpufreq/mediatek-cpufreq-hw.c |   33 ++++++++++++++++++++++++++++++---
>  1 file changed, 30 insertions(+), 3 deletions(-)

Applied. Thanks.

-- 
viresh