linux-kernel - Re: [PATCH] PCI / Hotplug: Fix the ordering of operations in pcied

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Date:	Wed, 23 Nov 2011 13:10:44 +0900
From:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	linux-pci@...r.kernel.org, Oliver Neukum <oneukum@...e.de>
Subject: Re: [PATCH] PCI / Hotplug: Fix the ordering of operations in pcied_cleanup()

I've sent the patch to fix the problem a few weeks ago, and it is in
Jesse's -next tree.

Regards,
Kenji Kaneshige


(2011/11/23 7:05), Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki<rjw@...k.pl>
> 
> Make pcied_cleanup() unregister the port service before
> destroying workqueues that are flushed during the port service
> unregistration.
> 
> Reported-by: Oliver Neukum<oneukum@...e.de>
> Signed-off-by: Rafael J. Wysocki<rjw@...k.pl>
> ---
>   drivers/pci/hotplug/pciehp_core.c |    2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> Index: linux/drivers/pci/hotplug/pciehp_core.c
> ===================================================================
> --- linux.orig/drivers/pci/hotplug/pciehp_core.c
> +++ linux/drivers/pci/hotplug/pciehp_core.c
> @@ -366,9 +366,9 @@ static int __init pcied_init(void)
>   static void __exit pcied_cleanup(void)
>   {
>   	dbg("unload_pciehpd()\n");
> +	pcie_port_service_unregister(&hpdriver_portdrv);
>   	destroy_workqueue(pciehp_ordered_wq);
>   	destroy_workqueue(pciehp_wq);
> -	pcie_port_service_unregister(&hpdriver_portdrv);
>   	info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
>   }
> 
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