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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>
hifive-unleashed-5.1
Alexander Gordeev 2014-04-17 14:13:50 +02:00 committed by Tejun Heo
parent ab0f9e78b9
commit ccf8f53cac
1 changed files with 4 additions and 4 deletions
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8
drivers/ata/ahci.c
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@ -1166,7 +1166,7 @@ static inline void ahci_gtf_filter_workaround(struct ata_host *host)
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 @@ static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
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 */