linux-kernel - [PATCH] Intel IOMMU: RMRRs do not necessarily have to be present on all VT-d capable platforms

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Message-ID: <20080701091354.GA12969@ywang-dev>
Date:	Tue, 1 Jul 2008 05:13:54 -0400
From:	Yong Wang <yong.y.wang@...ux.intel.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] Intel IOMMU: RMRRs do not necessarily have to be present
	on all VT-d capable platforms

RMRRs do not necessarily have to be present on all VT-d capable platforms.
The printk is just informational and does not need to be followed by an
error return.

Signed-off-by: Yong Y Wang <yong.y.wang@...el.com>
---
 dmar.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index f941f60..8bf86ae 100644
--- a/drivers/pci/dmar.c
+++ b/drivers/pci/dmar.c
@@ -317,10 +317,8 @@ int __init dmar_table_init(void)
 		return -ENODEV;
 	}
 
-	if (list_empty(&dmar_rmrr_units)) {
+	if (list_empty(&dmar_rmrr_units))
 		printk(KERN_INFO PREFIX "No RMRR found\n");
-		return -ENODEV;
-	}
 
 	return 0;
 }
--
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