From d151f63f20133aef9dbda209faddebcddbfccf31 Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Mon, 8 Oct 2012 18:36:11 -0600 Subject: [PATCH] KVM: change kvm_assign_device() to print return value when iommu_attach_device() fails Change existing kernel error message to include return value from iommu_attach_device() when it fails. This will help debug device assignment failures more effectively. Signed-off-by: Shuah Khan Signed-off-by: Marcelo Tosatti --- virt/kvm/iommu.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index 037cb6730e68..18e1e30019e3 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -168,11 +168,7 @@ int kvm_assign_device(struct kvm *kvm, r = iommu_attach_device(domain, &pdev->dev); if (r) { - printk(KERN_ERR "assign device %x:%x:%x.%x failed", - pci_domain_nr(pdev->bus), - pdev->bus->number, - PCI_SLOT(pdev->devfn), - PCI_FUNC(pdev->devfn)); + dev_err(&pdev->dev, "kvm assign device failed ret %d", r); return r; } -- 2.39.5