qemu: Use VIR_ERR_DEVICE_MISSING for various hotplug messages

Modify OPERATION_FAILED and INTERNAL_ERROR error codes to
use DEVICE_MISSING instead for failures associated with the
inability to find the device. This makes it easier for consumers
to key off the error code rather than the error message.
Signed-off-by: NChen Hanxiao <chenhanxiao@gmail.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

src/conf/domain_conf.c

@@ -16320,7 +16320,7 @@ virDomainNetFindIdx(virDomainDefPtr def, virDomainNetDefPtr net)
 
     if (matchidx < 0) {
         if (MACAddrSpecified && PCIAddrSpecified) {
-            virReportError(VIR_ERR_OPERATION_FAILED,
+            virReportError(VIR_ERR_DEVICE_MISSING,
                            _("no device matching MAC address %s found on "
                              "%.4x:%.2x:%.2x.%.1x"),
                            virMacAddrFormat(&net->mac, mac),
@@ -16329,18 +16329,18 @@ virDomainNetFindIdx(virDomainDefPtr def, virDomainNetDefPtr net)
                            net->info.addr.pci.slot,
                            net->info.addr.pci.function);
         } else if (PCIAddrSpecified) {
-            virReportError(VIR_ERR_OPERATION_FAILED,
+            virReportError(VIR_ERR_DEVICE_MISSING,
                            _("no device found on %.4x:%.2x:%.2x.%.1x"),
                            net->info.addr.pci.domain,
                            net->info.addr.pci.bus,
                            net->info.addr.pci.slot,
                            net->info.addr.pci.function);
         } else if (MACAddrSpecified) {
-            virReportError(VIR_ERR_OPERATION_FAILED,
+            virReportError(VIR_ERR_DEVICE_MISSING,
                            _("no device matching MAC address %s found"),
                            virMacAddrFormat(&net->mac, mac));
         } else {
-            virReportError(VIR_ERR_OPERATION_FAILED, "%s",
+            virReportError(VIR_ERR_DEVICE_MISSING, "%s",
                            _("no matching device found"));
         }
     }

src/qemu/qemu_hotplug.c

@@ -3518,7 +3518,7 @@ qemuDomainChangeGraphics(virQEMUDriverPtr driver,
     int ret = -1;
 
     if (!olddev) {
-        virReportError(VIR_ERR_INTERNAL_ERROR,
+        virReportError(VIR_ERR_DEVICE_MISSING,
                        _("cannot find existing graphics device to modify of "
                          "type '%s'"), type);
         goto cleanup;
@@ -4813,7 +4813,7 @@ int qemuDomainDetachControllerDevice(virQEMUDriverPtr driver,
     if ((idx = virDomainControllerFind(vm->def,
                                        dev->data.controller->type,
                                        dev->data.controller->idx)) < 0) {
-        virReportError(VIR_ERR_OPERATION_FAILED,
+        virReportError(VIR_ERR_DEVICE_MISSING,
                        _("controller %s:%d not found"),
                        virDomainControllerTypeToString(dev->data.controller->type),
                        dev->data.controller->idx);
@@ -5042,18 +5042,18 @@ int qemuDomainDetachHostDevice(virQEMUDriverPtr driver,
     if (idx < 0) {
         switch (subsys->type) {
         case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
-            virReportError(VIR_ERR_OPERATION_FAILED,
+            virReportError(VIR_ERR_DEVICE_MISSING,
                            _("host pci device %.4x:%.2x:%.2x.%.1x not found"),
                            pcisrc->addr.domain, pcisrc->addr.bus,
                            pcisrc->addr.slot, pcisrc->addr.function);
             break;
         case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB:
             if (usbsrc->bus && usbsrc->device) {
-                virReportError(VIR_ERR_OPERATION_FAILED,
+                virReportError(VIR_ERR_DEVICE_MISSING,
                                _("host usb device %03d.%03d not found"),
                                usbsrc->bus, usbsrc->device);
             } else {
-                virReportError(VIR_ERR_OPERATION_FAILED,
+                virReportError(VIR_ERR_DEVICE_MISSING,
                                _("host usb device vendor=0x%.4x product=0x%.4x not found"),
                                usbsrc->vendor, usbsrc->product);
             }
@@ -5062,13 +5062,13 @@ int qemuDomainDetachHostDevice(virQEMUDriverPtr driver,
             if (scsisrc->protocol ==
                 VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
                 virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
-                virReportError(VIR_ERR_OPERATION_FAILED,
+                virReportError(VIR_ERR_DEVICE_MISSING,
                                _("host scsi iSCSI path %s not found"),
                                iscsisrc->src->path);
             } else {
                  virDomainHostdevSubsysSCSIHostPtr scsihostsrc =
                      &scsisrc->u.host;
-                 virReportError(VIR_ERR_OPERATION_FAILED,
+                 virReportError(VIR_ERR_DEVICE_MISSING,
                                 _("host scsi device %s:%u:%u.%llu not found"),
                                 scsihostsrc->adapter, scsihostsrc->bus,
                                 scsihostsrc->target, scsihostsrc->unit);
@@ -5106,7 +5106,7 @@ qemuDomainDetachShmemDevice(virQEMUDriverPtr driver,
     qemuDomainObjPrivatePtr priv = vm->privateData;
 
     if ((idx = virDomainShmemDefFind(vm->def, dev)) < 0) {
-        virReportError(VIR_ERR_OPERATION_INVALID,
+        virReportError(VIR_ERR_DEVICE_MISSING,
                        _("model '%s' shmem device not present "
                          "in domain configuration"),
                        virDomainShmemModelTypeToString(dev->model));
@@ -5165,7 +5165,7 @@ qemuDomainDetachWatchdog(virQEMUDriverPtr driver,
           watchdog->model == dev->model &&
           watchdog->action == dev->action &&
           virDomainDeviceInfoAddressIsEqual(&dev->info, &watchdog->info))) {
-        virReportError(VIR_ERR_OPERATION_INVALID,
+        virReportError(VIR_ERR_DEVICE_MISSING,
                        _("model '%s' watchdog device not present "
                          "in domain configuration"),
                        virDomainWatchdogModelTypeToString(watchdog->model));
@@ -5438,7 +5438,7 @@ int qemuDomainDetachChrDevice(virQEMUDriverPtr driver,
     char *devstr = NULL;
 
     if (!(tmpChr = virDomainChrFind(vmdef, chr))) {
-        virReportError(VIR_ERR_OPERATION_INVALID,
+        virReportError(VIR_ERR_DEVICE_MISSING,
                        _("chr type '%s' device not present "
                          "in domain configuration"),
                        virDomainChrDeviceTypeToString(chr->deviceType));
@@ -5487,7 +5487,7 @@ qemuDomainDetachRNGDevice(virQEMUDriverPtr driver,
     int ret = -1;
 
     if ((idx = virDomainRNGFind(vm->def, rng)) < 0) {
-        virReportError(VIR_ERR_OPERATION_INVALID,
+        virReportError(VIR_ERR_DEVICE_MISSING,
                        _("model '%s' RNG device not present "
                          "in domain configuration"),
                        virDomainRNGBackendTypeToString(rng->model));
@@ -5532,7 +5532,7 @@ qemuDomainDetachMemoryDevice(virQEMUDriverPtr driver,
     qemuDomainMemoryDeviceAlignSize(vm->def, memdef);
 
     if ((idx = virDomainMemoryFindByDef(vm->def, memdef)) < 0) {
-        virReportError(VIR_ERR_OPERATION_INVALID,
+        virReportError(VIR_ERR_DEVICE_MISSING,
                        _("model '%s' memory device not present "
                          "in the domain configuration"),
                        virDomainMemoryModelTypeToString(memdef->model));