Commit e2b1820b authored by Scott Bauer's avatar Scott Bauer Committed by Bjorn Helgaas
Browse files

PCI: vmd: Free up IRQs on suspend path 



Free up the IRQs we request on the suspend path and reallocate them on the
resume path.

Fixes this error:

  CPU 111 disable failed: CPU has 9 vectors assigned and there are only 0 available.
  Error taking CPU111 down: -34
  Non-boot CPUs are not disabled
  Enabling non-boot CPUs ...

Signed-off-by: default avatarScott Bauer <scott.bauer@intel.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarKeith Busch <keith.busch@intel.com>
parent f2586c67

drivers/pci/host/vmd.c

+15 −0
Original line number Diff line number Diff line
@@ -763,6 +763,11 @@ static void vmd_remove(struct pci_dev *dev) 
static int vmd_suspend(struct device *dev)

{

	struct pci_dev *pdev = to_pci_dev(dev);

	struct vmd_dev *vmd = pci_get_drvdata(pdev);

	int i;



	for (i = 0; i < vmd->msix_count; i++)

                devm_free_irq(dev, pci_irq_vector(pdev, i), &vmd->irqs[i]);



	pci_save_state(pdev);

	return 0;
@@ -771,6 +776,16 @@ static int vmd_suspend(struct device *dev) 
static int vmd_resume(struct device *dev)

{

	struct pci_dev *pdev = to_pci_dev(dev);

	struct vmd_dev *vmd = pci_get_drvdata(pdev);

	int err, i;



	for (i = 0; i < vmd->msix_count; i++) {

		err = devm_request_irq(dev, pci_irq_vector(pdev, i),

				       vmd_irq, IRQF_NO_THREAD,

				       "vmd", &vmd->irqs[i]);

		if (err)

			return err;

	}



	pci_restore_state(pdev);

	return 0;