[libvirt] [PATCH] qemu: Remove duplicated code in qemuBuildSerialChrDeviceStr()

[Andrea Bolognani]

The call to qemuBuildDeviceAddressStr() happens no matter
what, so we can move it outside of the switch. We can also
move the call to virBufferAsprintf() closer to it to avoid
having formatting - error checking - more formatting.

Signed-off-by: Andrea Bolognani <abologna at redhat.com>
---
 src/qemu/qemu_command.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index c53ab97..9bb0163 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -10296,10 +10296,6 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
                 goto error;
         }
     } else {
-        virBufferAsprintf(&cmd, "%s,chardev=char%s,id=%s",
-                          virDomainChrSerialTargetTypeToString(serial->targetType),
-                          serial->info.alias, serial->info.alias);
-
         switch (serial->targetType) {
         case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB:
             if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_USB_SERIAL)) {
@@ -10314,9 +10310,6 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
                                _("usb-serial requires address of usb type"));
                 goto error;
             }
-
-            if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
-                goto error;
             break;
 
         case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_ISA:
@@ -10326,9 +10319,6 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
                                _("isa-serial requires address of isa type"));
                 goto error;
             }
-
-            if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
-                goto error;
             break;
 
         case VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_PCI:
@@ -10344,11 +10334,15 @@ qemuBuildSerialChrDeviceStr(char **deviceStr,
                                _("pci-serial requires address of pci type"));
                 goto error;
             }
-
-            if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
-                goto error;
             break;
         }
+
+        virBufferAsprintf(&cmd, "%s,chardev=char%s,id=%s",
+                          virDomainChrSerialTargetTypeToString(serial->targetType),
+                          serial->info.alias, serial->info.alias);
+
+        if (qemuBuildDeviceAddressStr(&cmd, def, &serial->info, qemuCaps) < 0)
+            goto error;
     }
 
     if (virBufferCheckError(&cmd) < 0)
-- 
2.7.5