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path: root/drivers/pci/pci.c
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-rw-r--r--drivers/pci/pci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 3222f902270..bd52ca4c289 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1374,9 +1374,9 @@ pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge)
pin = dev->pin;
if (!pin)
return -1;
- pin--;
+
while (dev->bus->self) {
- pin = (pin + PCI_SLOT(dev->devfn)) % 4;
+ pin = (((pin - 1) + PCI_SLOT(dev->devfn)) % 4) + 1;
dev = dev->bus->self;
}
*bridge = dev;