[libvirt] [PATCH 01/21] Added missing virBufferFreeAndReset on the query buffer to free some memory

[Yves Vinter]

From: yvinter <yves.vinter at bull.net>

---
 src/hyperv/hyperv_driver.c | 13 +++++++++++++
 src/hyperv/hyperv_wmi.c    | 15 +++++++++++----
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/src/hyperv/hyperv_driver.c b/src/hyperv/hyperv_driver.c
index aed9307..372ff39 100644
--- a/src/hyperv/hyperv_driver.c
+++ b/src/hyperv/hyperv_driver.c
@@ -201,6 +201,7 @@ hypervConnectOpen(virConnectPtr conn, virConnectAuthPtr auth, unsigned int flags
     VIR_FREE(username);
     VIR_FREE(password);
     hypervFreeObject(priv, (hypervObject *)computerSystem);
+    virBufferFreeAndReset(&query);
 
     return result;
 }
@@ -254,6 +255,7 @@ hypervConnectGetHostname(virConnectPtr conn)
 
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystem);
+    virBufferFreeAndReset(&query);
 
     return hostname;
 }
@@ -352,6 +354,7 @@ hypervNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info)
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystem);
     hypervFreeObject(priv, (hypervObject *)processorList);
+    virBufferFreeAndReset(&query);
 
     return result;
 }
@@ -396,6 +399,7 @@ hypervConnectListDomains(virConnectPtr conn, int *ids, int maxids)
 
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystemList);
+    virBufferFreeAndReset(&query);
 
     return success ? count : -1;
 }
@@ -432,6 +436,7 @@ hypervConnectNumOfDomains(virConnectPtr conn)
 
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystemList);
+    virBufferFreeAndReset(&query);
 
     return success ? count : -1;
 }
@@ -464,6 +469,7 @@ hypervDomainLookupByID(virConnectPtr conn, int id)
 
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystem);
+    virBufferFreeAndReset(&query);
 
     return domain;
 }
@@ -500,6 +506,7 @@ hypervDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid)
 
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystem);
+    virBufferFreeAndReset(&query);
 
     return domain;
 }
@@ -533,6 +540,7 @@ hypervDomainLookupByName(virConnectPtr conn, const char *name)
 
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystem);
+    virBufferFreeAndReset(&query);
 
     return domain;
 }
@@ -748,6 +756,7 @@ hypervDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info)
     hypervFreeObject(priv, (hypervObject *)virtualSystemSettingData);
     hypervFreeObject(priv, (hypervObject *)processorSettingData);
     hypervFreeObject(priv, (hypervObject *)memorySettingData);
+    virBufferFreeAndReset(&query);
 
     return result;
 }
@@ -915,6 +924,7 @@ hypervDomainGetXMLDesc(virDomainPtr domain, unsigned int flags)
     hypervFreeObject(priv, (hypervObject *)virtualSystemSettingData);
     hypervFreeObject(priv, (hypervObject *)processorSettingData);
     hypervFreeObject(priv, (hypervObject *)memorySettingData);
+    virBufferFreeAndReset(&query);
 
     return xml;
 }
@@ -971,6 +981,7 @@ hypervConnectListDefinedDomains(virConnectPtr conn, char **const names, int maxn
     }
 
     hypervFreeObject(priv, (hypervObject *)computerSystemList);
+    virBufferFreeAndReset(&query);
 
     return count;
 }
@@ -1007,6 +1018,7 @@ hypervConnectNumOfDefinedDomains(virConnectPtr conn)
 
  cleanup:
     hypervFreeObject(priv, (hypervObject *)computerSystemList);
+    virBufferFreeAndReset(&query);
 
     return success ? count : -1;
 }
@@ -1346,6 +1358,7 @@ hypervConnectListAllDomains(virConnectPtr conn,
     }
 
     hypervFreeObject(priv, (hypervObject *)computerSystemList);
+    virBufferFreeAndReset(&query);
 
     return ret;
 }
diff --git a/src/hyperv/hyperv_wmi.c b/src/hyperv/hyperv_wmi.c
index acb705c..d93abd9 100644
--- a/src/hyperv/hyperv_wmi.c
+++ b/src/hyperv/hyperv_wmi.c
@@ -526,6 +526,7 @@ hypervInvokeMsvmComputerSystemRequestStateChange(virDomainPtr domain,
     VIR_FREE(returnValue);
     VIR_FREE(instanceID);
     hypervFreeObject(priv, (hypervObject *)concreteJob);
+    virBufferFreeAndReset(&query);
 
     return result;
 }
@@ -646,13 +647,14 @@ int
 hypervMsvmComputerSystemFromDomain(virDomainPtr domain,
                                    Msvm_ComputerSystem **computerSystem)
 {
+    int result = -1;
     hypervPrivate *priv = domain->conn->privateData;
     char uuid_string[VIR_UUID_STRING_BUFLEN];
     virBuffer query = VIR_BUFFER_INITIALIZER;
 
     if (computerSystem == NULL || *computerSystem != NULL) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Invalid argument"));
-        return -1;
+        goto cleanup;
     }
 
     virUUIDFormat(domain->uuid, uuid_string);
@@ -663,16 +665,21 @@ hypervMsvmComputerSystemFromDomain(virDomainPtr domain,
     virBufferAsprintf(&query, "and Name = \"%s\"", uuid_string);
 
     if (hypervGetMsvmComputerSystemList(priv, &query, computerSystem) < 0) {
-        return -1;
+        goto cleanup;
     }
 
     if (*computerSystem == NULL) {
         virReportError(VIR_ERR_NO_DOMAIN,
                        _("No domain with UUID %s"), uuid_string);
-        return -1;
+        goto cleanup;
     }
 
-    return 0;
+    result = 0;
+
+ cleanup:
+    virBufferFreeAndReset(&query);
+
+    return result;
 }
 
 
-- 
1.9.1