vlib: Fix pci io bar read/write fd leak
Few devices provide PCI bar region(s) through I/O.
If any such device driver opens I/O "fd" to read and write,
needs to close it, when pci device is going to be deleted.
@@ -1210,6 +1210,10 @@ vlib_pci_device_open (vlib_main_t * vm, vlib_pci_addr_t * addr,
p->handle = p - lpm->linux_pci_devices;
p->addr.as_u32 = di->addr.as_u32;
p->intx_irq.fd = -1;
+ /*
+ * pci io bar read/write fd
+ */
+ p->io_fd = -1;
pci_log_debug (vm, p, "open vid:0x%04x did:0x%04x driver:%s iommu_group:%d",
di->vendor_id, di->device_id, di->driver_name,
@@ -1253,6 +1257,8 @@ vlib_pci_device_close (vlib_main_t * vm, vlib_pci_dev_handle_t h)
irq = &p->intx_irq;
clib_file_del_by_index (&file_main, irq->clib_file_index);
close (p->config_fd);
+ if (p->io_fd != -1)
+ close (p->io_fd);
}
else if (p->type == LINUX_PCI_DEVICE_TYPE_VFIO)
{
