From: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>
To: Wei Yongjun <weiyongjun@huaweicloud.com>
Cc: "Marc Zyngier" <maz@kernel.org>,
openbmc@lists.ozlabs.org,
"Jonathan Neuschäfer" <j.neuschaefer@gmx.net>,
linux-kernel@vger.kernel.org,
"Wei Yongjun" <weiyongjun1@huawei.com>,
"Thomas Gleixner" <tglx@linutronix.de>
Subject: Re: [PATCH] irqchip/wpcm450: fix memory leak in ap_init_qci_info()
Date: Tue, 15 Nov 2022 09:36:01 +0100 [thread overview]
Message-ID: <Y3NPcfuS9M6BSoEW@probook> (raw)
In-Reply-To: <20221114110854.554220-1-weiyongjun@huaweicloud.com>
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Hi,
the function name is wrong in the in the subject line. Other than that,
the patch looks good.
Thanks,
Jonathan
On Mon, Nov 14, 2022 at 11:08:54AM +0000, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@huawei.com>
>
> If of_iomap() failed, 'aic' should be freed before return. Otherwise
> there is a memory leak.
>
> Fixes: fead4dd49663 ("irqchip: Add driver for WPCM450 interrupt controller")
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---
> drivers/irqchip/irq-wpcm450-aic.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/irqchip/irq-wpcm450-aic.c b/drivers/irqchip/irq-wpcm450-aic.c
> index 0dcbeb1a05a1..91df62a64cd9 100644
> --- a/drivers/irqchip/irq-wpcm450-aic.c
> +++ b/drivers/irqchip/irq-wpcm450-aic.c
> @@ -146,6 +146,7 @@ static int __init wpcm450_aic_of_init(struct device_node *node,
> aic->regs = of_iomap(node, 0);
> if (!aic->regs) {
> pr_err("Failed to map WPCM450 AIC registers\n");
> + kfree(aic);
> return -ENOMEM;
> }
>
> --
> 2.34.1
>
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WARNING: multiple messages have this Message-ID (diff)
From: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>
To: Wei Yongjun <weiyongjun@huaweicloud.com>
Cc: "Jonathan Neuschäfer" <j.neuschaefer@gmx.net>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Marc Zyngier" <maz@kernel.org>,
"Wei Yongjun" <weiyongjun1@huawei.com>,
openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] irqchip/wpcm450: fix memory leak in ap_init_qci_info()
Date: Tue, 15 Nov 2022 09:36:01 +0100 [thread overview]
Message-ID: <Y3NPcfuS9M6BSoEW@probook> (raw)
In-Reply-To: <20221114110854.554220-1-weiyongjun@huaweicloud.com>
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Hi,
the function name is wrong in the in the subject line. Other than that,
the patch looks good.
Thanks,
Jonathan
On Mon, Nov 14, 2022 at 11:08:54AM +0000, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@huawei.com>
>
> If of_iomap() failed, 'aic' should be freed before return. Otherwise
> there is a memory leak.
>
> Fixes: fead4dd49663 ("irqchip: Add driver for WPCM450 interrupt controller")
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---
> drivers/irqchip/irq-wpcm450-aic.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/irqchip/irq-wpcm450-aic.c b/drivers/irqchip/irq-wpcm450-aic.c
> index 0dcbeb1a05a1..91df62a64cd9 100644
> --- a/drivers/irqchip/irq-wpcm450-aic.c
> +++ b/drivers/irqchip/irq-wpcm450-aic.c
> @@ -146,6 +146,7 @@ static int __init wpcm450_aic_of_init(struct device_node *node,
> aic->regs = of_iomap(node, 0);
> if (!aic->regs) {
> pr_err("Failed to map WPCM450 AIC registers\n");
> + kfree(aic);
> return -ENOMEM;
> }
>
> --
> 2.34.1
>
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next prev parent reply other threads:[~2022-11-15 8:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-14 11:08 [PATCH] irqchip/wpcm450: fix memory leak in ap_init_qci_info() Wei Yongjun
2022-11-14 11:08 ` Wei Yongjun
2022-11-15 8:36 ` Jonathan Neuschäfer [this message]
2022-11-15 8:36 ` Jonathan Neuschäfer
2022-11-15 9:10 ` Wei Yongjun
2022-11-15 9:10 ` Wei Yongjun
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