linux-kernel - [PATCH 5/5] xen/pciback: Fix "device has been assigned to X domain!" warning

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Date:	Wed,  4 Jan 2012 19:46:43 -0500
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	linux-kernel@...r.kernel.org, jbarnes@...tuousgeek.org,
	linux-pci@...r.kernel.org
Cc:	xen-devel@...ts.xensource.com,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [PATCH 5/5] xen/pciback: Fix "device has been assigned to X domain!" warning

The full warning is:
"pciback 0000:05:00.0: device has been assigned to 2 domain! Over-writting the ownership, but beware."

which is correct - the previous domain that was using the device
forgot to unregister the ownership. This patch fixes this by
calling the unregister ownership function when the PCI device is
relinquished from the guest domain.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
---
 drivers/xen/xen-pciback/pci_stub.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index d66328e..6f63b9d 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -260,6 +260,8 @@ void pcistub_put_pci_dev(struct pci_dev *dev)
 	xen_pcibk_config_free_dyn_fields(found_psdev->dev);
 	xen_pcibk_config_reset_dev(found_psdev->dev);
 
+	xen_unregister_device_domain_owner(found_psdev->dev);
+
 	spin_lock_irqsave(&found_psdev->lock, flags);
 	found_psdev->pdev = NULL;
 	spin_unlock_irqrestore(&found_psdev->lock, flags);
-- 
1.7.7.4

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