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-rw-r--r--drivers/ata/ahci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index dc2756f..3c5f35e 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1170,8 +1170,10 @@ static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
nvec = rc;
rc = pci_enable_msi_block(pdev, nvec);
- if (rc)
+ if (rc < 0)
goto intx;
+ else if (rc > 0)
+ goto single_msi;
return nvec;
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