diff options
| -rw-r--r-- | drivers/pci/msi/msi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c index fdd2ec09651e..160af9f01669 100644 --- a/drivers/pci/msi/msi.c +++ b/drivers/pci/msi/msi.c @@ -935,6 +935,11 @@ static int __pci_enable_msix_range(struct pci_dev *dev, if (maxvec < minvec) return -ERANGE; + if (dev->msi_enabled) { + pci_info(dev, "can't enable MSI-X (MSI already enabled)\n"); + return -EINVAL; + } + if (WARN_ON_ONCE(dev->msix_enabled)) return -EINVAL; |