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qemu: Modernize memory cleaning in qemuDomainBlockCopyCommon

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Use VIR_AUTOFREE, VIR_AUTOUNREF, and VIR_STEAL_PTR.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2019-05-14 14:30:57 +02:00
parent 019461facb
commit ddafae7a39
1 changed files with 8 additions and 13 deletions
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21
src/qemu/qemu_driver.c
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@ -17572,7 +17572,7 @@ static int
qemuDomainBlockCopyCommon(virDomainObjPtr vm,
virConnectPtr conn,
const char *path,
virStorageSourcePtr mirror,
virStorageSourcePtr mirrorsrc,
unsigned long long bandwidth,
unsigned int granularity,
unsigned long long buf_size,
@ -17581,15 +17581,16 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm,
{
virQEMUDriverPtr driver = conn->privateData;
qemuDomainObjPrivatePtr priv;
char *device = NULL;
VIR_AUTOFREE(char *) device = NULL;
virDomainDiskDefPtr disk = NULL;
int ret = -1;
bool need_unlink = false;
virQEMUDriverConfigPtr cfg = NULL;
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
const char *format = NULL;
virErrorPtr monitor_error = NULL;
bool reuse = !!(flags & VIR_DOMAIN_BLOCK_COPY_REUSE_EXT);
qemuBlockJobDataPtr job = NULL;
VIR_AUTOUNREF(virStorageSourcePtr) mirror = mirrorsrc;
/* Preliminaries: find the disk we are editing, sanity checks */
virCheckFlags(VIR_DOMAIN_BLOCK_COPY_SHALLOW |
@ -17597,12 +17598,11 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm,
VIR_DOMAIN_BLOCK_COPY_TRANSIENT_JOB, -1);
priv = vm->privateData;
cfg = virQEMUDriverGetConfig(driver);
if (virStorageSourceIsRelative(mirror)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("absolute path must be used as block copy target"));
goto cleanup;
return -1;
}
if (bandwidth > LLONG_MAX) {
@ -17610,11 +17610,11 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm,
_("bandwidth must be less than "
"'%llu' bytes/s (%llu MiB/s)"),
LLONG_MAX, LLONG_MAX >> 20);
goto cleanup;
return -1;
}
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0)
goto cleanup;
return -1;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
@ -17760,8 +17760,7 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm,
qemuBlockJobStarted(job);
need_unlink = false;
virStorageFileDeinit(mirror);
disk->mirror = mirror;
mirror = NULL;
VIR_STEAL_PTR(disk->mirror, mirror);
disk->mirrorJob = VIR_DOMAIN_BLOCK_JOB_TYPE_COPY;
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, driver->caps) < 0)
@ -17779,10 +17778,6 @@ qemuDomainBlockCopyCommon(virDomainObjPtr vm,
}
qemuBlockJobStartupFinalize(job);
cleanup:
VIR_FREE(device);
virObjectUnref(cfg);
virObjectUnref(mirror);
return ret;
}