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qemu: fix uninitialized variable warning

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This commit fixes
qemu/qemu_driver.c: In function 'qemuDomainModifyDeviceFlags':
qemu/qemu_driver.c:4041:8: warning: 'ret' may be used uninitialized in this
function [-Wuninitialized]
qemu/qemu_driver.c:4013:9: note: 'ret' was declared here

The variable is set to -1 so that the error paths are taken when the code
to set it didn't get a chance to run. Without initializing it, we could
return some an undefined value from this function.

While I was at it, I made a trivial whitespace change in the same function
to improve readability.
This commit is contained in:
Christophe Fergeau 2011-05-02 11:10:10 +02:00 committed by Eric Blake
parent 170f2a8747
commit b15a8a1bdf
1 changed files with 2 additions and 2 deletions
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4
src/qemu/qemu_driver.c
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@ -4010,11 +4010,11 @@ qemuDomainChangeDiskMediaLive(virDomainObjPtr vm,
{
virDomainDiskDefPtr disk = dev->data.disk;
virCgroupPtr cgroup = NULL;
int ret;
int ret = -1;
if (qemuCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_DEVICES)) {
if (virCgroupForDomain(driver->cgroup,
vm->def->name, &cgroup, 0) !=0 ) {
vm->def->name, &cgroup, 0) != 0) {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to find cgroup for %s"),
vm->def->name);