linux-kernel - Re: [PATCH 2/2] PCI: hotplug, fix memory leaks

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Date:	Thu, 07 Jan 2010 08:54:38 +0900
From:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
To:	Jiri Slaby <jslaby@...e.cz>
CC:	jbarnes@...tuousgeek.org, linux-kernel@...r.kernel.org,
	jirislaby@...il.com, linux-pci@...r.kernel.org
Subject: Re: [PATCH 2/2] PCI: hotplug, fix memory leaks

Good catch.

Reviewed-by: Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>

Jiri Slaby wrote:
> Stanse found a cut&pasted memory leak in pciehp_queue_pushbutton_work
> and shpchp_queue_pushbutton_work. info is not freed/assigned on all
> paths. Fix that.
> 
> Signed-off-by: Jiri Slaby <jslaby@...e.cz>
> Cc: Jesse Barnes <jbarnes@...tuousgeek.org>
> Cc: linux-pci@...r.kernel.org
> ---
>  drivers/pci/hotplug/pciehp_ctrl.c |    1 +
>  drivers/pci/hotplug/shpchp_ctrl.c |    1 +
>  2 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
> index d6ac1b2..9a7f247 100644
> --- a/drivers/pci/hotplug/pciehp_ctrl.c
> +++ b/drivers/pci/hotplug/pciehp_ctrl.c
> @@ -341,6 +341,7 @@ void pciehp_queue_pushbutton_work(struct work_struct *work)
>  		p_slot->state = POWERON_STATE;
>  		break;
>  	default:
> +		kfree(info);
>  		goto out;
>  	}
>  	queue_work(pciehp_wq, &info->work);
> diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
> index b8ab279..86f6276 100644
> --- a/drivers/pci/hotplug/shpchp_ctrl.c
> +++ b/drivers/pci/hotplug/shpchp_ctrl.c
> @@ -462,6 +462,7 @@ void shpchp_queue_pushbutton_work(struct work_struct *work)
>  		p_slot->state = POWERON_STATE;
>  		break;
>  	default:
> +		kfree(info);
>  		goto out;
>  	}
>  	queue_work(shpchp_wq, &info->work);


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