[PATCH] ahci: fix the single MSI-X case in ahci_init_one

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We need to make sure hpriv->irq is set properly if we don't use per-port
vectors, so switch from blindly assigning pdev->irq to using
pci_irq_vector, which handles all interrupt types correctly.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reported-by: Robert Richter <robert.richter@xxxxxxxxxx>
Tested-by: Robert Richter <robert.richter@xxxxxxxxxx>
Tested-by: David Daney <ddaney.cavm@xxxxxxxxx>
Fixes: 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors")

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index ba5f11c..5fe852d 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1617,7 +1617,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		/* legacy intx interrupts */
 		pci_intx(pdev, 1);
 	}
-	hpriv->irq = pdev->irq;
+	hpriv->irq = pci_irq_vector(pdev, 0);
 
 	if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
 		host->flags |= ATA_HOST_PARALLEL_SCAN;
--
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