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Commit ccf8f53c authored by Alexander Gordeev's avatar Alexander Gordeev Committed by Tejun Heo
Browse files

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: default avatarAlexander Gordeev <agordeev@redhat.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent ab0f9e78

drivers/ata/ahci.c

+4 −4
Original line number Diff line number Diff line
@@ -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 */