Monitor: Convert pci_device_hot_add() to cmd_new_ret()

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/pci-hotplug.c

@@ -254,7 +254,7 @@ void pci_device_hot_add_print(Monitor *mon, const QObject *data)
  *
  * { "domain": 0, "bus": 0, "slot": 5, "function": 0 }
  */
-void pci_device_hot_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
+int pci_device_hot_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
 {
     PCIDevice *dev = NULL;
     const char *pci_addr = qdict_get_str(qdict, "pci_addr");
@@ -273,20 +273,26 @@ void pci_device_hot_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
     if (!strcmp(pci_addr, "auto"))
         pci_addr = NULL;
 
-    if (strcmp(type, "nic") == 0)
+    if (strcmp(type, "nic") == 0) {
         dev = qemu_pci_hot_add_nic(mon, pci_addr, opts);
-    else if (strcmp(type, "storage") == 0)
+    } else if (strcmp(type, "storage") == 0) {
         dev = qemu_pci_hot_add_storage(mon, pci_addr, opts);
-    else
+    } else {
         monitor_printf(mon, "invalid type: %s\n", type);
+        return -1;
+    }
 
     if (dev) {
         *ret_data =
         qobject_from_jsonf("{ 'domain': 0, 'bus': %d, 'slot': %d, "
                            "'function': %d }", pci_bus_num(dev->bus),
                            PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-    } else
+    } else {
         monitor_printf(mon, "failed to add %s\n", opts);
+        return -1;
+    }
+
+    return 0;
 }
 #endif
 

qemu-monitor.hx

@@ -857,7 +857,7 @@ ETEXI
         .params     = "auto|[[<domain>:]<bus>:]<slot> nic|storage [[vlan=n][,macaddr=addr][,model=type]] [file=file][,if=type][,bus=nr]...",
         .help       = "hot-add PCI device",
         .user_print = pci_device_hot_add_print,
-        .mhandler.cmd_new = pci_device_hot_add,
+        .cmd_new_ret = pci_device_hot_add,
     },
 #endif
 

sysemu.h

@@ -213,7 +213,7 @@ DriveInfo *add_init_drive(const char *opts);
 
 /* pci-hotplug */
 void pci_device_hot_add_print(Monitor *mon, const QObject *data);
-void pci_device_hot_add(Monitor *mon, const QDict *qdict, QObject **ret_data);
+int pci_device_hot_add(Monitor *mon, const QDict *qdict, QObject **ret_data);
 void drive_hot_add(Monitor *mon, const QDict *qdict);
 void pci_device_hot_remove(Monitor *mon, const char *pci_addr);
 void do_pci_device_hot_remove(Monitor *mon, const QDict *qdict,