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From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 23 Mar 2012 18:22:38 +0000 (UTC)
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Subject: svn commit: r233384 - in stable/8/sys: dev/e1000 i386/conf
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Author: jhb
Date: Fri Mar 23 18:22:38 2012
New Revision: 233384
URL: http://svn.freebsd.org/changeset/base/233384

Log:
  MFC 232367:
  Properly handle failures in igb_setup_msix() by returning 0 if MSI or MSI-X
  allocation fails.

Modified:
  stable/8/sys/dev/e1000/if_igb.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/boot/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/e1000/   (props changed)
  stable/8/sys/i386/conf/XENHVM   (props changed)

Modified: stable/8/sys/dev/e1000/if_igb.c
==============================================================================
--- stable/8/sys/dev/e1000/if_igb.c	Fri Mar 23 18:22:20 2012	(r233383)
+++ stable/8/sys/dev/e1000/if_igb.c	Fri Mar 23 18:22:38 2012	(r233384)
@@ -2702,7 +2702,7 @@ igb_setup_msix(struct adapter *adapter)
 		    "MSIX Configuration Problem, "
 		    "%d vectors configured, but %d queues wanted!\n",
 		    msgs, want);
-		return (ENXIO);
+		return (0);
 	}
 	if ((msgs) && pci_alloc_msix(dev, &msgs) == 0) {
                	device_printf(adapter->dev,
@@ -2712,9 +2712,11 @@ igb_setup_msix(struct adapter *adapter)
 	}
 msi:
        	msgs = pci_msi_count(dev);
-       	if (msgs == 1 && pci_alloc_msi(dev, &msgs) == 0)
-               	device_printf(adapter->dev,"Using MSI interrupt\n");
-	return (msgs);
+	if (msgs == 1 && pci_alloc_msi(dev, &msgs) == 0) {
+		device_printf(adapter->dev," Using MSI interrupt\n");
+		return (msgs);
+	}
+	return (0);
 }
 
 /*********************************************************************