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PCI: make msi_free_irqs() to use msix_mask_irq() instead of open coded write 

Use msix_mask_irq() instead of direct use of writel, so as not to clear
preserved bits in the Vector Control register [31:1].

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Hidetoshi Seto 2009-06-18 19:20:26 -07:00 committed by Jesse Barnes
parent f598282f51
commit 2af5066f66
1 changed files with 1 additions and 4 deletions
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5
drivers/pci/msi.c
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@ -653,10 +653,7 @@ static int msi_free_irqs(struct pci_dev* dev)
list_for_each_entry_safe(entry, tmp, &dev->msi_list, list) {
if (entry->msi_attrib.is_msix) {
writel(1, entry->mask_base + entry->msi_attrib.entry_nr
* PCI_MSIX_ENTRY_SIZE
+ PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET);
msix_mask_irq(entry, 1);
if (list_is_last(&entry->list, &dev->msi_list))
iounmap(entry->mask_base);
}