From: Yong Wang <yong.y.wang@linux.intel.com>
Date: Tue, 22 Jul 2008 21:14:18 +0000 (-0700)
Subject: PCI/DMAR: don't assume presence of RMRRs
X-Git-Tag: v2.6.27-rc1~511^2~2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f42e86d95fa53d3a62b2795515da18b4f41b0480;p=linux-2.6

PCI/DMAR: don't assume presence of RMRRs

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@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: mark gross <mgross@linux.intel.com>
Cc: Keshavamurthy, Anil S <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---

diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
index f941f609db..8bf86ae233 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;
 }