linux-kernel - Re: [PATCH 8/8] mfd: sprd-sc27xx: Fix wakeup source leaks on device unbind

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

Message-ID: <e4da515b-ccd9-4864-a61f-e198e640e6db@linux.alibaba.com>
Date: Mon, 7 Apr 2025 09:56:11 +0800
From: Baolin Wang <baolin.wang@...ux.alibaba.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Karel Balej <balejk@...fyz.cz>, Lee Jones <lee@...nel.org>,
 Chanwoo Choi <cw00.choi@...sung.com>, Krzysztof Kozlowski <krzk@...nel.org>,
 Orson Zhai <orsonzhai@...il.com>, Chunyan Zhang <zhang.lyra@...il.com>
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/8] mfd: sprd-sc27xx: Fix wakeup source leaks on device
 unbind



On 2025/4/7 03:50, Krzysztof Kozlowski wrote:
> Device can be unbound, so driver must also release memory for the wakeup
> source.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Thanks. LGTM.
Reviewed-by: Baolin Wang <baolin.wang@...ux.alibaba.com>

> ---
>   drivers/mfd/sprd-sc27xx-spi.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mfd/sprd-sc27xx-spi.c b/drivers/mfd/sprd-sc27xx-spi.c
> index 7186e2108108f0d779bfe72d476fa333194c23ca..d6b4350779e6aecfa19d9fa21b9174447d589e33 100644
> --- a/drivers/mfd/sprd-sc27xx-spi.c
> +++ b/drivers/mfd/sprd-sc27xx-spi.c
> @@ -210,7 +210,10 @@ static int sprd_pmic_probe(struct spi_device *spi)
>   		return ret;
>   	}
>   
> -	device_init_wakeup(&spi->dev, true);
> +	ret = devm_device_init_wakeup(&spi->dev);
> +	if (ret)
> +		return dev_err_probe(&spi->dev, ret, "Failed to init wakeup\n");
> +
>   	return 0;
>   }
>   
>