[libvirt] [PATCH 2/4] conf, qemu: Check for NULL addrs in virDomainUSBAddressEnsure

[John Ferlan]

Rather than having the caller check, if the input @addrs is NULL
(e.g. priv->usbaddrs), then just return 0.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/conf/domain_addr.c  |  3 +++
 src/conf/domain_addr.h  |  2 +-
 src/qemu/qemu_hotplug.c | 23 ++++++++---------------
 3 files changed, 12 insertions(+), 16 deletions(-)

diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
index a44f964701..78ff7a9cc6 100644
--- a/src/conf/domain_addr.c
+++ b/src/conf/domain_addr.c
@@ -2154,6 +2154,9 @@ int
 virDomainUSBAddressEnsure(virDomainUSBAddressSetPtr addrs,
                           virDomainDeviceInfoPtr info)
 {
+    if (!addrs)
+        return 0;
+
     if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE ||
         (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_USB &&
          !virDomainUSBAddressPortIsValid(info->addr.usb.port))) {
diff --git a/src/conf/domain_addr.h b/src/conf/domain_addr.h
index 7565322bd2..d3541bab09 100644
--- a/src/conf/domain_addr.h
+++ b/src/conf/domain_addr.h
@@ -325,7 +325,7 @@ virDomainUSBAddressAssign(virDomainUSBAddressSetPtr addrs,
 int
 virDomainUSBAddressEnsure(virDomainUSBAddressSetPtr addrs,
                           virDomainDeviceInfoPtr info)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+    ATTRIBUTE_NONNULL(2);
 
 int
 virDomainUSBAddressRelease(virDomainUSBAddressSetPtr addrs,
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 10cdba436b..51a7a68f84 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -664,10 +664,8 @@ qemuDomainAttachUSBMassStorageDevice(virConnectPtr conn,
 {
     qemuDomainObjPrivatePtr priv = vm->privateData;
 
-    if (priv->usbaddrs) {
-        if (virDomainUSBAddressEnsure(priv->usbaddrs, &disk->info) < 0)
-            return -1;
-    }
+    if (virDomainUSBAddressEnsure(priv->usbaddrs, &disk->info) < 0)
+        return -1;
 
     if (qemuDomainAttachDiskGeneric(conn, driver, vm, disk) < 0) {
         virDomainUSBAddressRelease(priv->usbaddrs, &disk->info);
@@ -1772,8 +1770,7 @@ qemuDomainAttachChrDeviceAssignAddr(virDomainObjPtr vm,
             return -1;
         return 1;
 
-    } else if (priv->usbaddrs &&
-               chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
+    } else if (chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
                chr->targetType == VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB) {
         if (virDomainUSBAddressEnsure(priv->usbaddrs, &chr->info) < 0)
             return -1;
@@ -2187,10 +2184,8 @@ qemuDomainAttachHostUSBDevice(virQEMUDriverPtr driver,
     bool teardowndevice = false;
     int ret = -1;
 
-    if (priv->usbaddrs) {
-        if (virDomainUSBAddressEnsure(priv->usbaddrs, hostdev->info) < 0)
-            return -1;
-    }
+    if (virDomainUSBAddressEnsure(priv->usbaddrs, hostdev->info) < 0)
+        return -1;
 
     if (qemuHostdevPrepareUSBDevices(driver, vm->def->name, &hostdev, 1, 0) < 0)
         goto cleanup;
@@ -2750,11 +2745,9 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver,
         if (qemuDomainEnsureVirtioAddress(&releaseaddr, vm, &dev, "input") < 0)
             return -1;
     } else if (input->bus == VIR_DOMAIN_INPUT_BUS_USB) {
-        if (priv->usbaddrs) {
-            if (virDomainUSBAddressEnsure(priv->usbaddrs, &input->info) < 0)
-                goto cleanup;
-            releaseaddr = true;
-        }
+        if (virDomainUSBAddressEnsure(priv->usbaddrs, &input->info) < 0)
+            goto cleanup;
+        releaseaddr = true;
     }
 
     if (qemuAssignDeviceInputAlias(vm->def, input, -1) < 0)
-- 
2.13.6