On Wed, 16 Aug 2023 10:59:39 -0700, Dexuan Cui wrote:
> When a Linux VM with an assigned PCI device runs on Hyper-V, if the PCI
> device driver is not loaded yet (i.e. MSI-X/MSI is not enabled on the
> device yet), doing a VM hibernation triggers a panic in
> hv_pci_restore_msi_msg() -> msi_lock_descs(&pdev->dev), because
> pdev->dev.msi.data is still NULL.
>
> Avoid the panic by checking if MSI-X/MSI is enabled.
>
> [...]
Applied to controller/hv, thanks!
[1/1] PCI: hv: Fix a crash in hv_pci_restore_msi_msg() during hibernation
https://git.kernel.org/pci/pci/c/04bbe863241a
Thanks,
Lorenzo
