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From: Shawn Lin <shawn.lin@rock-chips.com>
To: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: shawn.lin@rock-chips.com, Ulf Hansson <ulfh@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org
Subject: Re: [PATCH 2/4] pmdomain: rockchip: fix clock leak on domain probe failure
Date: Sat, 19 Sep 2026 08:13:08 +0800	[thread overview]
Message-ID: <27e3944f-81c6-48e4-8033-e30ae70f8e26@rock-chips.com> (raw)
In-Reply-To: <aq1yU47vQT5OnxLo@venus>

Hi Sebastian

在 2026/09/19 星期六 1:21, Sebastian Reichel 写道:
> Hi,
> 
> On Fri, Sep 18, 2026 at 08:07:36PM +0800, Shawn Lin wrote:
>> When of_clk_get() failed in the middle of the loop, the references of
>> the clocks acquired so far were leaked instead of being released by
>> the error path.
>>
>> Fixes: d909072d0521 ("soc: rockchip: power-domain: use clk_bulk APIs")
>> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
>> ---
> 
> Right, but this should switch
> 
> pd->clks = devm_kcalloc(...);
> 
> to
> 
> pd->clks = devm_kzalloc(...);
> 
> at the same time to ensure that clk_bulk_put() does not run over
> non-initialized data. Otherwise

Good catch, will improve it in v2.

Thanks.

> 
> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> 
> Greetings,
> 
> -- Sebastian
> 
>>
>>   drivers/pmdomain/rockchip/pm-domains.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pmdomain/rockchip/pm-domains.c b/drivers/pmdomain/rockchip/pm-domains.c
>> index 068dd4b3..b6b099b 100644
>> --- a/drivers/pmdomain/rockchip/pm-domains.c
>> +++ b/drivers/pmdomain/rockchip/pm-domains.c
>> @@ -842,7 +842,7 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
>>   			dev_err(pmu->dev,
>>   				"%pOFn: failed to get clk at index %d: %d\n",
>>   				node, i, error);
>> -			return error;
>> +			goto err_put_clocks;
>>   		}
>>   	}
>>   
>> -- 
>> 2.7.4
>>
>>


  reply	other threads:[~2026-09-19  1:28 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1789733258-10133-1-git-send-email-shawn.lin@rock-chips.com>
2026-09-18 12:07 ` [PATCH 1/4] pmdomain: rockchip: propagate subdomain add errors Shawn Lin
2026-09-18 17:18   ` Sebastian Reichel
2026-09-18 12:07 ` [PATCH 2/4] pmdomain: rockchip: fix clock leak on domain probe failure Shawn Lin
2026-09-18 17:21   ` Sebastian Reichel
2026-09-19  0:13     ` Shawn Lin [this message]
2026-09-20  1:15       ` Shawn Lin
2026-09-22 14:46         ` Sebastian Reichel
2026-09-18 12:07 ` [PATCH 3/4] pmdomain: rockchip: don't ignore clock lookup errors on attach Shawn Lin
2026-09-18 17:59   ` Sebastian Reichel
2026-09-18 12:07 ` [PATCH 4/4] pmdomain: rockchip: drop duplicated errno from supply failure message Shawn Lin
2026-09-18 17:54   ` Sebastian Reichel

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