ahci: Use pci_enable_msi_exact() instead of pci_enable_msi_range()
The driver calls pci_enable_msi_range() function with the range of
[nvec..nvec] which is what pci_enable_msi_exact() function is for.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index f6b3e31..44d40c7 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1166,7 +1166,7 @@
static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
struct ahci_host_priv *hpriv)
{
- int nvec;
+ int rc, nvec;
if (hpriv->flags & AHCI_HFLAG_NO_MSI)
goto intx;
@@ -1183,10 +1183,10 @@
if (nvec < n_ports)
goto single_msi;
- nvec = pci_enable_msi_range(pdev, nvec, nvec);
- if (nvec == -ENOSPC)
+ rc = pci_enable_msi_exact(pdev, nvec);
+ if (rc == -ENOSPC)
goto single_msi;
- else if (nvec < 0)
+ else if (rc < 0)
goto intx;
/* fallback to single MSI mode if the controller enforced MRSM mode */