libvirt/SOURCES/libvirt-qemu-Use-g_autoptr-for-qemuDomainSaveCookie.patch

From c5cdebd40024c33675f93b47732869c658204056 Mon Sep 17 00:00:00 2001
Message-Id: <c5cdebd40024c33675f93b47732869c658204056@dist-git>
From: Michal Privoznik <mprivozn@redhat.com>
Date: Thu, 16 Jan 2020 10:03:53 +0100
Subject: [PATCH] qemu: Use g_autoptr() for qemuDomainSaveCookie
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1718707

(cherry picked from commit 3203ad6cfd617fb11d4bb47e514c370b6624641b)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <5e58b5853f9bd1a2b5109145afdad190071f5c44.1579165329.git.mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
 src/qemu/qemu_domain.c | 28 ++++++++++------------------
 src/qemu/qemu_domain.h |  1 +
 src/qemu/qemu_driver.c |  6 ++----
 3 files changed, 13 insertions(+), 22 deletions(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 0edf316fff..91a9f0481b 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -16001,27 +16001,23 @@ qemuDomainSaveCookiePtr
 qemuDomainSaveCookieNew(virDomainObjPtr vm)
 {
     qemuDomainObjPrivatePtr priv = vm->privateData;
-    qemuDomainSaveCookiePtr cookie = NULL;
+    g_autoptr(qemuDomainSaveCookie) cookie = NULL;
 
     if (qemuDomainInitialize() < 0)
-        goto error;
+        return NULL;
 
     if (!(cookie = virObjectNew(qemuDomainSaveCookieClass)))
-        goto error;
+        return NULL;
 
     if (priv->origCPU && !(cookie->cpu = virCPUDefCopy(vm->def->cpu)))
-        goto error;
+        return NULL;
 
     cookie->slirpHelper = qemuDomainGetSlirpHelperOk(vm);
 
     VIR_DEBUG("Save cookie %p, cpu=%p, slirpHelper=%d",
               cookie, cookie->cpu, cookie->slirpHelper);
 
-    return cookie;
-
- error:
-    virObjectUnref(cookie);
-    return NULL;
+    return g_steal_pointer(&cookie);
 }
 
 
@@ -16029,26 +16025,22 @@ static int
 qemuDomainSaveCookieParse(xmlXPathContextPtr ctxt G_GNUC_UNUSED,
                           virObjectPtr *obj)
 {
-    qemuDomainSaveCookiePtr cookie = NULL;
+    g_autoptr(qemuDomainSaveCookie) cookie = NULL;
 
     if (qemuDomainInitialize() < 0)
-        goto error;
+        return -1;
 
     if (!(cookie = virObjectNew(qemuDomainSaveCookieClass)))
-        goto error;
+        return -1;
 
     if (virCPUDefParseXML(ctxt, "./cpu[1]", VIR_CPU_TYPE_GUEST,
                           &cookie->cpu) < 0)
-        goto error;
+        return -1;
 
     cookie->slirpHelper = virXPathBoolean("boolean(./slirpHelper)", ctxt) > 0;
 
-    *obj = (virObjectPtr) cookie;
+    *obj = (virObjectPtr) g_steal_pointer(&cookie);
     return 0;
-
- error:
-    virObjectUnref(cookie);
-    return -1;
 }
 
 
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index c6afc484f6..60b80297fa 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -610,6 +610,7 @@ struct _qemuDomainSaveCookie {
     bool slirpHelper;
 };
 
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(qemuDomainSaveCookie, virObjectUnref);
 
 typedef struct _qemuDomainXmlNsDef qemuDomainXmlNsDef;
 typedef qemuDomainXmlNsDef *qemuDomainXmlNsDefPtr;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index e1c0550b9a..ce9b1772c1 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3293,7 +3293,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
     virObjectEventPtr event = NULL;
     qemuDomainObjPrivatePtr priv = vm->privateData;
     virQEMUSaveDataPtr data = NULL;
-    qemuDomainSaveCookiePtr cookie = NULL;
+    g_autoptr(qemuDomainSaveCookie) cookie = NULL;
 
     if (!qemuMigrationSrcIsAllowed(driver, vm, false, 0))
         goto cleanup;
@@ -3399,7 +3399,6 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver,
         qemuDomainRemoveInactiveJob(driver, vm);
 
  cleanup:
-    virObjectUnref(cookie);
     virQEMUSaveDataFree(data);
     virObjectEventStateQueue(driver->domainEventState, event);
     return ret;
@@ -6808,7 +6807,7 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
     g_autofree char *errbuf = NULL;
     g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver);
     virQEMUSaveHeaderPtr header = &data->header;
-    qemuDomainSaveCookiePtr cookie = NULL;
+    g_autoptr(qemuDomainSaveCookie) cookie = NULL;
 
     if (virSaveCookieParseString(data->cookie, (virObjectPtr *)&cookie,
                                  virDomainXMLOptionGetSaveCookie(driver->xmlopt)) < 0)
@@ -6919,7 +6918,6 @@ qemuDomainSaveImageStartVM(virConnectPtr conn,
     ret = 0;
 
  cleanup:
-    virObjectUnref(cookie);
     if (qemuSecurityRestoreSavedStateLabel(driver, vm, path) < 0)
         VIR_WARN("failed to restore save state label on %s", path);
     return ret;
-- 
2.25.0