linux-kernel - Re: [PATCH -next] soc: aspeed-lpc-ctrl: Fix missing clk_disable_unprepare() on error in aspeed_lpc_ctrl

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 24 Aug 2021 15:39:47 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     Joel Stanley <joel@....id.au>
CC:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-aspeed <linux-aspeed@...ts.ozlabs.org>,
        Andrew Jeffery <andrew@...id.au>
Subject: Re: [PATCH -next] soc: aspeed-lpc-ctrl: Fix missing
 clk_disable_unprepare() on error in aspeed_lpc_ctrl_probe()

Hi,

On 2021/8/24 12:52, Joel Stanley wrote:
> On Mon, 23 Aug 2021 at 12:55, Yang Yingliang <yangyingliang@...wei.com> wrote:
>> Fix the missing clk_disable_unprepare() before return
>> from aspeed_lpc_ctrl_probe() in the error handling case.
>>
>> Fixes: 2f9b25fa6682 ("soc: aspeed: Re-enable FWH2AHB on AST2600")
>> Reported-by: Hulk Robot <hulkci@...wei.com>
>> Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
>> ---
>>   drivers/soc/aspeed/aspeed-lpc-ctrl.c | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/soc/aspeed/aspeed-lpc-ctrl.c b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
>> index 6893c5ec3259..f4c989584d6b 100644
>> --- a/drivers/soc/aspeed/aspeed-lpc-ctrl.c
>> +++ b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
>> @@ -312,7 +312,8 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev)
>>                  lpc_ctrl->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2600-scu");
>>                  if (IS_ERR(lpc_ctrl->scu)) {
>>                          dev_err(dev, "couldn't find scu\n");
>> -                       return PTR_ERR(lpc_ctrl->scu);
>> +                       rc = PTR_ERR(lpc_ctrl->scu);
>> +                       goto err;
> Thanks for the patch. Alternatively, we could move this code above the
> devm_clk_get/clk_prepare_enable. I would prefer that option, if you
> want to send a v2.
I can send a v2.

Thanks,
Yang
>
> Cheers,
>
> Joel
> .