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Properly handle failures in igb_setup_msix() by returning 0 if MSI or MSI-X

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allocation fails.

Reviewed by:	jfv
MFC after:	2 weeks
This commit is contained in:
John Baldwin 2012-03-01 22:13:10 +00:00
parent 78d763a29b
commit c3173381be
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=232367
1 changed files with 6 additions and 4 deletions
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10
sys/dev/e1000/if_igb.c
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@ -2711,7 +2711,7 @@ 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,
@ -2721,9 +2721,11 @@ 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);
}
/*********************************************************************