diff options
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c index d8c95cc16be8..80cae87fff36 100644 --- a/drivers/vfio/pci/vfio_pci_core.c +++ b/drivers/vfio/pci/vfio_pci_core.c @@ -1281,6 +1281,9 @@ static int vfio_pci_ioctl_get_pci_hot_reset_info( if (ret) return ret; + if (WARN_ON(!count)) /* Should always be at least one */ + return -ERANGE; + if (count > (hdr.argsz - sizeof(hdr)) / sizeof(*devices)) { hdr.count = count; ret = -ENOSPC; |