linux-kernel - Re: [PATCH 2/5] Correctly clean up pci root buses in function pci_remove

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Message-ID: <CAE9FiQVRMBHN+QbFpVv4j2xPfco2X0bt9OzzcSE-BrrDY4Oqgg@mail.gmail.com>
Date:	Mon, 12 Mar 2012 23:24:11 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jiang Liu <liuj97@...il.com>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Jiang Liu <jiang.liu@...wei.com>,
	Ashok Raj <ashok.raj@...el.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Youquan Song <youquan.song@...el.com>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	chenkeping@...wei.com
Subject: Re: [PATCH 2/5] Correctly clean up pci root buses in function pci_remove_bus()

On Sun, Mar 11, 2012 at 10:48 AM, Jiang Liu <liuj97@...il.com> wrote:
> The function pci_create_root_bus() allocates the pci bus structure,
> registers the bus device and creates the legacy files for a pci root
> bus, but returns without setting the is_added flag. The is_added flag
> for a pci root bus will be set by function pci_scan_child_bus().

> If a pci root bus is destroyed before calling pci_scan_child_bus(),
> the is_added flag will not be set.

how that can be met?

Do we have pci_remove_rescan_mutex around them?

Yinghai
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