util: Alter virCloseCallback typedef to return void

Since virCloseCallbacksRun was ignoring the value anyway, let's
just change it to be a void function.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>

src/bhyve/bhyve_process.c

@@ -53,7 +53,7 @@
 
 VIR_LOG_INIT("bhyve.bhyve_process");
 
-static virDomainObjPtr
+static void
 bhyveProcessAutoDestroy(virDomainObjPtr vm,
                         virConnectPtr conn ATTRIBUTE_UNUSED,
                         void *opaque)
@@ -62,12 +62,8 @@ bhyveProcessAutoDestroy(virDomainObjPtr vm,
 
     virBhyveProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_DESTROYED);
 
-    if (!vm->persistent) {
+    if (!vm->persistent)
         virDomainObjListRemove(driver->domains, vm);
-        vm = NULL;
-    }
-
-    return vm;
 }
 
 static void

src/lxc/lxc_process.c

@@ -59,7 +59,7 @@ VIR_LOG_INIT("lxc.lxc_process");
 
 #define START_POSTFIX ": starting up\n"
 
-static virDomainObjPtr
+static void
 lxcProcessAutoDestroy(virDomainObjPtr dom,
                       virConnectPtr conn,
                       void *opaque)
@@ -79,15 +79,11 @@ lxcProcessAutoDestroy(virDomainObjPtr dom,
                                      VIR_DOMAIN_EVENT_STOPPED_DESTROYED);
     priv->doneStopEvent = true;
 
-    if (!dom->persistent) {
+    if (!dom->persistent)
         virDomainObjListRemove(driver->domains, dom);
-        dom = NULL;
-    }
 
     if (event)
         virObjectEventStateQueue(driver->domainEventState, event);
-
-    return dom;
 }
 
 /*

src/qemu/qemu_migration.c

@@ -1954,7 +1954,7 @@ qemuMigrationDstRun(virQEMUDriverPtr driver,
  * qemuDomainMigrateBegin3 and qemuDomainMigratePerform3 or
  * qemuDomainMigratePerform3 and qemuDomainMigrateConfirm3.
  */
-static virDomainObjPtr
+static void
 qemuMigrationSrcCleanup(virDomainObjPtr vm,
                         virConnectPtr conn,
                         void *opaque)
@@ -1969,7 +1969,7 @@ qemuMigrationSrcCleanup(virDomainObjPtr vm,
                                               priv->job.phase));
 
     if (!qemuMigrationJobIsActive(vm, QEMU_ASYNC_JOB_MIGRATION_OUT))
-        goto cleanup;
+        return;
 
     VIR_DEBUG("The connection which started outgoing migration of domain %s"
               " was closed; canceling the migration",
@@ -2005,9 +2005,6 @@ qemuMigrationSrcCleanup(virDomainObjPtr vm,
         /* unreachable */
         ;
     }
-
- cleanup:
-    return vm;
 }
 
 

src/qemu/qemu_process.c

@@ -7046,7 +7046,7 @@ int qemuProcessAttach(virConnectPtr conn ATTRIBUTE_UNUSED,
 }
 
 
-static virDomainObjPtr
+static void
 qemuProcessAutoDestroy(virDomainObjPtr dom,
                        virConnectPtr conn,
                        void *opaque)
@@ -7070,7 +7070,7 @@ qemuProcessAutoDestroy(virDomainObjPtr dom,
     VIR_DEBUG("Killing domain");
 
     if (qemuProcessBeginStopJob(driver, dom, QEMU_JOB_DESTROY, true) < 0)
-        goto cleanup;
+        return;
 
     qemuProcessStop(driver, dom, VIR_DOMAIN_SHUTOFF_DESTROYED,
                     QEMU_ASYNC_JOB_NONE, stopFlags);
@@ -7085,9 +7085,6 @@ qemuProcessAutoDestroy(virDomainObjPtr dom,
     qemuDomainObjEndJob(driver, dom);
 
     qemuDomainEventQueue(driver, event);
-
- cleanup:
-    return dom;
 }
 
 int qemuProcessAutoDestroyAdd(virQEMUDriverPtr driver,

src/util/virclosecallbacks.c

@@ -359,10 +359,9 @@ virCloseCallbacksRun(virCloseCallbacksPtr closeCallbacks,
          * we're about to call the callback function and we have another
          * ref anyway (so it cannot be deleted).
          *
-         * Call the callback function, ignoring the return since it might be
-         * NULL. Once we're done with the object, then end the API usage. */
+         * Call the callback function and end the API usage. */
         virObjectUnref(vm);
-        ignore_value(list->entries[i].callback(vm, conn, opaque));
+        list->entries[i].callback(vm, conn, opaque);
         virDomainObjEndAPI(&vm);
     }
     VIR_FREE(list->entries);

src/util/virclosecallbacks.h

@@ -30,9 +30,9 @@
 typedef struct _virCloseCallbacks virCloseCallbacks;
 typedef virCloseCallbacks *virCloseCallbacksPtr;
 
-typedef virDomainObjPtr (*virCloseCallback)(virDomainObjPtr vm,
-                                            virConnectPtr conn,
-                                            void *opaque);
+typedef void (*virCloseCallback)(virDomainObjPtr vm,
+                                 virConnectPtr conn,
+                                 void *opaque);
 virCloseCallbacksPtr virCloseCallbacksNew(void);
 int virCloseCallbacksSet(virCloseCallbacksPtr closeCallbacks,
                          virDomainObjPtr vm,