diff --git a/src/lxc/lxc_cgroup.c b/src/lxc/lxc_cgroup.c
index 1984c5f8e51bc9f390828335f0e7fec859a99e61..4936219fe5cdae682889e5318b961a55141b2dc4 100644
--- a/src/lxc/lxc_cgroup.c
+++ b/src/lxc/lxc_cgroup.c
@@ -427,8 +427,11 @@ static int virLXCCgroupSetupDeviceACL(virDomainDefPtr def,
                 goto cleanup;
 
             if (usbDeviceFileIterate(usb, virLXCSetupHostUsbDeviceCgroup,
-                                     cgroup) < 0)
+                                     cgroup) < 0) {
+                usbFreeDevice(usb);
                 goto cleanup;
+            }
+            usbFreeDevice(usb);
             break;
         case VIR_DOMAIN_HOSTDEV_MODE_CAPABILITIES:
             switch (hostdev->source.caps.type) {
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index 376a21dd5696df693b775d83ed4d78e4825a068d..e0796cd4e537a7a56788b53b26e4dca17beb0cb5 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -302,8 +302,11 @@ int qemuSetupCgroup(virQEMUDriverPtr driver,
                 goto cleanup;
 
             if (usbDeviceFileIterate(usb, qemuSetupHostUsbDeviceCgroup,
-                                     &data) < 0)
+                                     &data) < 0) {
+                usbFreeDevice(usb);
                 goto cleanup;
+            }
+            usbFreeDevice(usb);
         }
     }