linux-kernel - Re: [PATCH 2/2] ACPI, PCI, ISA: Fix memory leak when there is no IRQ in the ACPI subsystem.

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Date:	Tue, 18 Feb 2014 02:02:50 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Tomasz Nowicki <tomasz.nowicki@...aro.org>
Cc:	lenb@...nel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ACPI, PCI, ISA: Fix memory leak when there is no IRQ in the ACPI subsystem.

On Monday, February 10, 2014 02:00:11 PM Tomasz Nowicki wrote:
> Whenever we register ISA interrupt or not, we need to free the IRQ routing
> table entry.
> 
> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@...aro.org>
> ---
>  drivers/acpi/pci_irq.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
> index b0e31b6..6ec0f36 100644
> --- a/drivers/acpi/pci_irq.c
> +++ b/drivers/acpi/pci_irq.c
> @@ -432,6 +432,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
>  #endif
>  		dev_warn(&dev->dev, "PCI INT %c: no GSI\n", pin_name(pin));
>  
> +		kfree(entry);

If I'm not mistaken, entry is always NULL here, isn't it?

>  		return 0;
>  	}
>  
> 

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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