vfio: fix mem leak when unmapping resource

The 'vfio_res' is not freed when unmapping resource by primary process. This leads to memory leak.

Fixes ab53203e194b ("vfio: enable unmapping resource for secondary")

Cc [email protected]

Signed-off-by Yunjian Wang <[email protected]>

---
 drivers/bus/pci/linux/pci_vfio.c | 1 +
 1 file changed, 1 insertion(+)

drivers/bus/pci/linux/pci_vfio.c +1 -1

index 64cd84a68..bf4c3c1fa 100644
@@ -966,6 +966,7 @@ pci_vfio_unmap_resource_primary(struct rte_pci_device *dev)
        }
 
        TAILQ_REMOVE(vfio_res_list, vfio_res, next);
+       rte_free(vfio_res);
 
        return 0;
 }
--

2.18.1