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Merge branch 'pci/controller/hv'

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- To avoid a NULL pointer dereference, skip MSI restore after hibernate if
  MSI/MSI-X hasn't been enabled (Dexuan Cui)

* pci/controller/hv:
  PCI: hv: Fix a crash in hv_pci_restore_msi_msg() during hibernation
This commit is contained in:
Bjorn Helgaas
2023-08-29 11:03:52 -05:00
parent 9190819c89 04bbe86324
commit 59a2b16dd5
1 changed files with 3 additions and 0 deletions
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3
drivers/pci/controller/pci-hyperv.c
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@@ -3983,6 +3983,9 @@ static int hv_pci_restore_msi_msg(struct pci_dev *pdev, void *arg)
struct msi_desc *entry;
int ret = 0;
if (!pdev->msi_enabled && !pdev->msix_enabled)
return 0;
msi_lock_descs(&pdev->dev);
msi_for_each_desc(entry, &pdev->dev, MSI_DESC_ASSOCIATED) {
irq_data = irq_get_irq_data(entry->irq);