more paranoid error checking

[palacios.git] / palacios / src / palacios / vmm_dev_mgr.c

diff --git a/palacios/src/palacios/vmm_dev_mgr.c b/palacios/src/palacios/vmm_dev_mgr.c
index 976f41d..c75e633 100644 (file)
--- a/palacios/src/palacios/vmm_dev_mgr.c
+++ b/palacios/src/palacios/vmm_dev_mgr.c
@@ -129,7 +129,7 @@ int v3_free_vm_devices(struct v3_vm_info * vm) {
     struct vm_device * dev;
     struct vm_device * tmp;
 
-    if (mgr) { 
+    if (mgr && mgr->num_devs > 0) { 
        list_for_each_entry_safe(dev, tmp, &(mgr->dev_list), dev_link) {
            v3_remove_device(dev);
        }