[libvirt] [PATCH 1/2] qemu: Clean up qemuBuildControllerDevCommandLine()

Add a cleanup: label, which will be used later, and improve the readability of one of the checks by making it conform to our formatting standard and moving a comment. Signed-off-by: Andrea Bolognani <abologna(a)redhat.com&gt; --- src/qemu/qemu_command.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 9a27987d4..83430b33f 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3122,6 +3122,7 @@ qemuBuildControllerDevCommandLine(virCommandPtr cmd, VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL, VIR_DOMAIN_CONTROLLER_TYPE_CCID, }; + int ret = -1; for (j = 0; j < ARRAY_CARDINALITY(contOrder); j++) { for (i = 0; i < def->ncontrollers; i++) { @@ -3183,7 +3184,7 @@ qemuBuildControllerDevCommandLine(virCommandPtr cmd, virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("Multiple legacy USB controllers are " "not supported")); - return -1; + goto cleanup; } usblegacy = true; continue; @@ -3191,7 +3192,7 @@ qemuBuildControllerDevCommandLine(virCommandPtr cmd, if (qemuBuildControllerDevStr(def, cont, qemuCaps, &devstr, &usbcontroller) < 0) - return -1; + goto cleanup; if (devstr) { virCommandAddArg(cmd, "-device"); @@ -3201,16 +3202,20 @@ qemuBuildControllerDevCommandLine(virCommandPtr cmd, } } - /* We haven't added any USB controller yet, but we haven't been asked - * not to add one either. Add a legacy USB controller, unless we're - * creating a kind of guest we want to keep legacy-free */ if (usbcontroller == 0 && !qemuDomainIsQ35(def) && !qemuDomainIsVirt(def) && - !ARCH_IS_S390(def->os.arch)) + !ARCH_IS_S390(def->os.arch)) { + /* We haven't added any USB controller yet, but we haven't been asked + * not to add one either. Add a legacy USB controller, unless we're + * creating a kind of guest we want to keep legacy-free */ virCommandAddArg(cmd, "-usb"); + } - return 0; + ret = 0; + + cleanup: + return ret; } -- 2.13.5