[PATCH 1/5] kvm tools: check ioctl return value for msi signal

[William Dauchy]

Signed-off-by: William Dauchy <will...@gandi.net>
---
 tools/kvm/virtio/pci.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/kvm/virtio/pci.c b/tools/kvm/virtio/pci.c
index b6ac571..ab1119a 100644
--- a/tools/kvm/virtio/pci.c
+++ b/tools/kvm/virtio/pci.c
@@ -245,7 +245,9 @@ static void virtio_pci__signal_msi(struct kvm *kvm, struct 
virtio_pci *vpci, int
                .data = vpci->msix_table[vec].msg.data,
        };
 
-       ioctl(kvm->vm_fd, KVM_SIGNAL_MSI, &msi);
+       if (ioctl(kvm->vm_fd, KVM_SIGNAL_MSI, &msi) < 0) {
+               pr_warning("Config pci device error: %s", strerror(errno));
+       }
 }
 
 int virtio_pci__signal_vq(struct kvm *kvm, struct virtio_device *vdev, u32 vq)
-- 
1.7.10.4

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