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vfio/pci: Trace vfio_set_irq_signaling() failure in vfio_msix_vector_release() 

Report an error in case we fail to set a trigger action
on any VFIO_PCI_MSIX_IRQ_INDEX subindex. This might be
useful in debugging a device that is not working properly.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Coverity (CID 1402196)
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Eric Auger 2019-07-02 19:18:16 +02:00 committed by Alex Williamson
parent d53f7a61c3
commit 5053bd7811
1 changed files with 5 additions and 2 deletions
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7
hw/vfio/pci.c
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@ -551,9 +551,12 @@ static void vfio_msix_vector_release(PCIDevice *pdev, unsigned int nr)
*/ */
if (vector->virq >= 0) { if (vector->virq >= 0) {
int32_t fd = event_notifier_get_fd(&vector->interrupt); int32_t fd = event_notifier_get_fd(&vector->interrupt);
Error *err = NULL;
vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_MSIX_IRQ_INDEX, nr, if (vfio_set_irq_signaling(&vdev->vbasedev, VFIO_PCI_MSIX_IRQ_INDEX, nr,
VFIO_IRQ_SET_ACTION_TRIGGER, fd, NULL); VFIO_IRQ_SET_ACTION_TRIGGER, fd, &err)) {
error_reportf_err(err, VFIO_MSG_PREFIX, vdev->vbasedev.name);
}
} }
} }