[PATCH 3/3] esx: Remove unnecessary NULL comparisons (3/3)

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Code cleanup: remove explicit NULL comparisons like ptr == NULL and
ptr != NULL from the ESX code, replacing them with the simpler ptr
and !ptr.

Part three of three.
---
 src/esx/esx_storage_backend_iscsi.c | 44 +++++++++----------
 src/esx/esx_storage_backend_vmfs.c  | 86 ++++++++++++++++++-------------------
 src/esx/esx_storage_driver.c        |  6 +--
 3 files changed, 68 insertions(+), 68 deletions(-)

diff --git a/src/esx/esx_storage_backend_iscsi.c b/src/esx/esx_storage_backend_iscsi.c
index 6d80f90..66b91d1 100644
--- a/src/esx/esx_storage_backend_iscsi.c
+++ b/src/esx/esx_storage_backend_iscsi.c
@@ -67,7 +67,7 @@ esxConnectNumOfStoragePools(virConnectPtr conn)
     }
 
     /* FIXME: code looks for software iSCSI adapter only */
-    if (hostInternetScsiHba == NULL) {
+    if (!hostInternetScsiHba) {
         /* iSCSI adapter may not be enabled for this host */
         return 0;
     }
@@ -80,7 +80,7 @@ esxConnectNumOfStoragePools(virConnectPtr conn)
      * return iSCSI names for all static targets to avoid duplicate names.
      */
     for (target = hostInternetScsiHba->configuredStaticTarget;
-         target != NULL; target = target->_next) {
+         target; target = target->_next) {
         ++count;
     }
 
@@ -117,7 +117,7 @@ esxConnectListStoragePools(virConnectPtr conn, char **const names,
     }
 
     /* FIXME: code looks for software iSCSI adapter only */
-    if (hostInternetScsiHba == NULL) {
+    if (!hostInternetScsiHba) {
         /* iSCSI adapter may not be enabled for this host */
         return 0;
     }
@@ -130,7 +130,7 @@ esxConnectListStoragePools(virConnectPtr conn, char **const names,
      * return iSCSI names for all static targets to avoid duplicate names.
      */
     for (target = hostInternetScsiHba->configuredStaticTarget;
-         target != NULL && count < maxnames; target = target->_next) {
+         target && count < maxnames; target = target->_next) {
         if (VIR_STRDUP(names[count], target->iScsiName) < 0)
             goto cleanup;
 
@@ -173,7 +173,7 @@ esxStoragePoolLookupByName(virConnectPtr conn,
         goto cleanup;
     }
 
-    if (target == NULL) {
+    if (!target) {
         /* pool not found, error handling done by the base driver */
         goto cleanup;
     }
@@ -214,13 +214,13 @@ esxStoragePoolLookupByUUID(virConnectPtr conn,
     }
 
     /* FIXME: code just looks for software iSCSI adapter */
-    if (hostInternetScsiHba == NULL) {
+    if (!hostInternetScsiHba) {
         /* iSCSI adapter may not be enabled for this host */
         return NULL;
     }
 
     for (target = hostInternetScsiHba->configuredStaticTarget;
-         target != NULL; target = target->_next) {
+         target; target = target->_next) {
         md5_buffer(target->iScsiName, strlen(target->iScsiName), md5);
 
         if (memcmp(uuid, md5, VIR_UUID_STRING_BUFLEN) == 0) {
@@ -228,7 +228,7 @@ esxStoragePoolLookupByUUID(virConnectPtr conn,
         }
     }
 
-    if (target == NULL) {
+    if (!target) {
         /* pool not found, error handling done by the base driver */
         goto cleanup;
     }
@@ -310,13 +310,13 @@ esxStoragePoolGetXMLDesc(virStoragePoolPtr pool, unsigned int flags)
     }
 
     for (target = hostInternetScsiHba->configuredStaticTarget;
-         target != NULL; target = target->_next) {
+         target; target = target->_next) {
         if (STREQ(target->iScsiName, pool->name)) {
             break;
         }
     }
 
-    if (target == NULL) {
+    if (!target) {
         /* pool not found */
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Could not find storage pool with name '%s'"),
@@ -339,7 +339,7 @@ esxStoragePoolGetXMLDesc(virStoragePoolPtr pool, unsigned int flags)
 
     def.source.hosts[0].name = target->address;
 
-    if (target->port != NULL) {
+    if (target->port) {
         def.source.hosts[0].port = target->port->value;
     }
 
@@ -369,7 +369,7 @@ esxStoragePoolNumOfVolumes(virStoragePoolPtr pool)
     }
 
     for (hostScsiTopologyLun = hostScsiTopologyLunList;
-         hostScsiTopologyLun != NULL;
+         hostScsiTopologyLun;
          hostScsiTopologyLun = hostScsiTopologyLun->_next) {
         ++count;
     }
@@ -399,7 +399,7 @@ esxStoragePoolListVolumes(virStoragePoolPtr pool, char **const names,
         goto cleanup;
     }
 
-    if (hostScsiTopologyLunList == NULL) {
+    if (!hostScsiTopologyLunList) {
         /* iSCSI adapter may not be enabled on ESX host */
         return 0;
     }
@@ -408,10 +408,10 @@ esxStoragePoolListVolumes(virStoragePoolPtr pool, char **const names,
         goto cleanup;
     }
 
-    for (scsiLun = scsiLunList; scsiLun != NULL && count < maxnames;
+    for (scsiLun = scsiLunList; scsiLun && count < maxnames;
          scsiLun = scsiLun->_next) {
         for (hostScsiTopologyLun = hostScsiTopologyLunList;
-             hostScsiTopologyLun != NULL && count < maxnames;
+             hostScsiTopologyLun && count < maxnames;
              hostScsiTopologyLun = hostScsiTopologyLun->_next) {
             if (STREQ(hostScsiTopologyLun->scsiLun, scsiLun->key)) {
                 if (VIR_STRDUP(names[count], scsiLun->deviceName) < 0)
@@ -457,7 +457,7 @@ esxStorageVolLookupByName(virStoragePoolPtr pool,
         goto cleanup;
     }
 
-    for (scsiLun = scsiLunList; scsiLun != NULL;
+    for (scsiLun = scsiLunList; scsiLun;
          scsiLun = scsiLun->_next) {
         if (STREQ(scsiLun->deviceName, name)) {
             /*
@@ -505,10 +505,10 @@ esxStorageVolLookupByPath(virConnectPtr conn, const char *path)
         goto cleanup;
     }
 
-    for (scsiLun = scsiLunList; scsiLun != NULL; scsiLun = scsiLun->_next) {
+    for (scsiLun = scsiLunList; scsiLun; scsiLun = scsiLun->_next) {
         hostScsiDisk = esxVI_HostScsiDisk_DynamicCast(scsiLun);
 
-        if (hostScsiDisk != NULL && STREQ(hostScsiDisk->devicePath, path)) {
+        if (hostScsiDisk && STREQ(hostScsiDisk->devicePath, path)) {
             /* Found matching device */
             VIR_FREE(poolName);
 
@@ -557,7 +557,7 @@ esxStorageVolLookupByKey(virConnectPtr conn, const char *key)
         goto cleanup;
     }
 
-    for (scsiLun = scsiLunList; scsiLun != NULL;
+    for (scsiLun = scsiLunList; scsiLun;
          scsiLun = scsiLun->_next) {
         memset(uuid_string, '\0', sizeof(uuid_string));
         memset(md5, '\0', sizeof(md5));
@@ -646,17 +646,17 @@ esxStorageVolGetXMLDesc(virStorageVolPtr volume,
         goto cleanup;
     }
 
-    for (scsiLun = scsiLunList; scsiLun != NULL;
+    for (scsiLun = scsiLunList; scsiLun;
          scsiLun = scsiLun->_next) {
         hostScsiDisk = esxVI_HostScsiDisk_DynamicCast(scsiLun);
 
-        if (hostScsiDisk != NULL &&
+        if (hostScsiDisk &&
             STREQ(hostScsiDisk->deviceName, volume->name)) {
             break;
         }
     }
 
-    if (hostScsiDisk == NULL) {
+    if (!hostScsiDisk) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Could find volume with name: %s"), volume->name);
         goto cleanup;
diff --git a/src/esx/esx_storage_backend_vmfs.c b/src/esx/esx_storage_backend_vmfs.c
index 4f252ff..f4a5d50 100644
--- a/src/esx/esx_storage_backend_vmfs.c
+++ b/src/esx/esx_storage_backend_vmfs.c
@@ -70,12 +70,12 @@ esxLookupVMFSStoragePoolType(esxVI_Context *ctx, const char *poolName,
         goto cleanup;
     }
 
-    if (datastore == NULL) {
+    if (!datastore) {
         /* Not found, let the base storage driver handle error reporting */
         goto cleanup;
     }
 
-    for (dynamicProperty = datastore->propSet; dynamicProperty != NULL;
+    for (dynamicProperty = datastore->propSet; dynamicProperty;
          dynamicProperty = dynamicProperty->_next) {
         if (STREQ(dynamicProperty->name, "info")) {
             if (esxVI_DatastoreInfo_CastFromAnyType(dynamicProperty->val,
@@ -87,11 +87,11 @@ esxLookupVMFSStoragePoolType(esxVI_Context *ctx, const char *poolName,
         }
     }
 
-    if (esxVI_LocalDatastoreInfo_DynamicCast(datastoreInfo) != NULL) {
+    if (esxVI_LocalDatastoreInfo_DynamicCast(datastoreInfo)) {
         *poolType = VIR_STORAGE_POOL_DIR;
-    } else if (esxVI_NasDatastoreInfo_DynamicCast(datastoreInfo) != NULL) {
+    } else if (esxVI_NasDatastoreInfo_DynamicCast(datastoreInfo)) {
         *poolType = VIR_STORAGE_POOL_NETFS;
-    } else if (esxVI_VmfsDatastoreInfo_DynamicCast(datastoreInfo) != NULL) {
+    } else if (esxVI_VmfsDatastoreInfo_DynamicCast(datastoreInfo)) {
         *poolType = VIR_STORAGE_POOL_FS;
     } else {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
@@ -123,7 +123,7 @@ esxConnectNumOfStoragePools(virConnectPtr conn)
         return -1;
     }
 
-    for (datastore = datastoreList; datastore != NULL;
+    for (datastore = datastoreList; datastore;
          datastore = datastore->_next) {
         ++count;
     }
@@ -159,9 +159,9 @@ esxConnectListStoragePools(virConnectPtr conn, char **const names,
         goto cleanup;
     }
 
-    for (datastore = datastoreList; datastore != NULL;
+    for (datastore = datastoreList; datastore;
          datastore = datastore->_next) {
-        for (dynamicProperty = datastore->propSet; dynamicProperty != NULL;
+        for (dynamicProperty = datastore->propSet; dynamicProperty;
              dynamicProperty = dynamicProperty->_next) {
             if (STREQ(dynamicProperty->name, "summary.name")) {
                 if (esxVI_AnyType_ExpectType(dynamicProperty->val,
@@ -215,7 +215,7 @@ esxStoragePoolLookupByName(virConnectPtr conn,
         goto cleanup;
     }
 
-    if (datastore == NULL) {
+    if (!datastore) {
         /* Not found, let the base storage driver handle error reporting */
         goto cleanup;
     }
@@ -233,7 +233,7 @@ esxStoragePoolLookupByName(virConnectPtr conn,
         goto cleanup;
     }
 
-    if (hostMount == NULL) {
+    if (!hostMount) {
         /* Not found, let the base storage driver handle error reporting */
         goto cleanup;
     }
@@ -273,7 +273,7 @@ esxStoragePoolLookupByUUID(virConnectPtr conn,
         goto cleanup;
     }
 
-    for (datastore = datastoreList; datastore != NULL;
+    for (datastore = datastoreList; datastore;
          datastore = datastore->_next) {
         esxVI_DatastoreHostMount_Free(&hostMount);
 
@@ -283,7 +283,7 @@ esxStoragePoolLookupByUUID(virConnectPtr conn,
             goto cleanup;
         }
 
-        if (hostMount == NULL) {
+        if (!hostMount) {
             /*
              * Storage pool is not of VMFS type, leave error reporting to the
              * base storage driver.
@@ -299,7 +299,7 @@ esxStoragePoolLookupByUUID(virConnectPtr conn,
         }
     }
 
-    if (datastore == NULL) {
+    if (!datastore) {
         /* Not found, let the base storage driver handle error reporting */
         goto cleanup;
     }
@@ -372,7 +372,7 @@ esxStoragePoolGetInfo(virStoragePoolPtr pool,
     if (accessible == esxVI_Boolean_True) {
         info->state = VIR_STORAGE_POOL_RUNNING;
 
-        for (dynamicProperty = datastore->propSet; dynamicProperty != NULL;
+        for (dynamicProperty = datastore->propSet; dynamicProperty;
              dynamicProperty = dynamicProperty->_next) {
             if (STREQ(dynamicProperty->name, "summary.capacity")) {
                 if (esxVI_AnyType_ExpectType(dynamicProperty->val,
@@ -446,7 +446,7 @@ esxStoragePoolGetXMLDesc(virStoragePoolPtr pool, unsigned int flags)
     def.target.path = hostMount->mountInfo->path;
 
     if (accessible == esxVI_Boolean_True) {
-        for (dynamicProperty = datastore->propSet; dynamicProperty != NULL;
+        for (dynamicProperty = datastore->propSet; dynamicProperty;
              dynamicProperty = dynamicProperty->_next) {
             if (STREQ(dynamicProperty->name, "summary.capacity")) {
                 if (esxVI_AnyType_ExpectType(dynamicProperty->val,
@@ -468,7 +468,7 @@ esxStoragePoolGetXMLDesc(virStoragePoolPtr pool, unsigned int flags)
         def.allocation = def.capacity - def.available;
     }
 
-    for (dynamicProperty = datastore->propSet; dynamicProperty != NULL;
+    for (dynamicProperty = datastore->propSet; dynamicProperty;
          dynamicProperty = dynamicProperty->_next) {
         if (STREQ(dynamicProperty->name, "info")) {
             if (esxVI_DatastoreInfo_CastFromAnyType(dynamicProperty->val,
@@ -481,9 +481,9 @@ esxStoragePoolGetXMLDesc(virStoragePoolPtr pool, unsigned int flags)
     }
 
     /* See vSphere API documentation about HostDatastoreSystem for details */
-    if (esxVI_LocalDatastoreInfo_DynamicCast(info) != NULL) {
+    if (esxVI_LocalDatastoreInfo_DynamicCast(info)) {
         def.type = VIR_STORAGE_POOL_DIR;
-    } else if ((nasInfo = esxVI_NasDatastoreInfo_DynamicCast(info)) != NULL) {
+    } else if ((nasInfo = esxVI_NasDatastoreInfo_DynamicCast(info))) {
         if (VIR_ALLOC_N(def.source.hosts, 1) < 0)
             goto cleanup;
         def.type = VIR_STORAGE_POOL_NETFS;
@@ -500,7 +500,7 @@ esxStoragePoolGetXMLDesc(virStoragePoolPtr pool, unsigned int flags)
                            nasInfo->nas->type);
             goto cleanup;
         }
-    } else if (esxVI_VmfsDatastoreInfo_DynamicCast(info) != NULL) {
+    } else if (esxVI_VmfsDatastoreInfo_DynamicCast(info)) {
         def.type = VIR_STORAGE_POOL_FS;
         /*
          * FIXME: I'm not sure how to represent the source and target of a
@@ -541,9 +541,9 @@ esxStoragePoolNumOfVolumes(virStoragePoolPtr pool)
     }
 
     /* Interpret search result */
-    for (searchResults = searchResultsList; searchResults != NULL;
+    for (searchResults = searchResultsList; searchResults;
          searchResults = searchResults->_next) {
-        for (fileInfo = searchResults->file; fileInfo != NULL;
+        for (fileInfo = searchResults->file; fileInfo;
              fileInfo = fileInfo->_next) {
             ++count;
         }
@@ -573,7 +573,7 @@ esxStoragePoolListVolumes(virStoragePoolPtr pool, char **const names,
     int count = 0;
     size_t i;
 
-    if (names == NULL || maxnames < 0) {
+    if (!names || maxnames < 0) {
         virReportError(VIR_ERR_INVALID_ARG, "%s", _("Invalid argument"));
         return -1;
     }
@@ -588,7 +588,7 @@ esxStoragePoolListVolumes(virStoragePoolPtr pool, char **const names,
     }
 
     /* Interpret search result */
-    for (searchResults = searchResultsList; searchResults != NULL;
+    for (searchResults = searchResultsList; searchResults;
          searchResults = searchResults->_next) {
         VIR_FREE(directoryAndFileName);
 
@@ -606,7 +606,7 @@ esxStoragePoolListVolumes(virStoragePoolPtr pool, char **const names,
         }
 
         /* Build volume names */
-        for (fileInfo = searchResults->file; fileInfo != NULL;
+        for (fileInfo = searchResults->file; fileInfo;
              fileInfo = fileInfo->_next) {
             if (length < 1) {
                 if (VIR_STRDUP(names[count], fileInfo->path) < 0)
@@ -738,7 +738,7 @@ esxStorageVolLookupByKey(virConnectPtr conn, const char *key)
         goto cleanup;
     }
 
-    for (datastore = datastoreList; datastore != NULL;
+    for (datastore = datastoreList; datastore;
          datastore = datastore->_next) {
         datastoreName = NULL;
 
@@ -756,7 +756,7 @@ esxStorageVolLookupByKey(virConnectPtr conn, const char *key)
         }
 
         /* Interpret search result */
-        for (searchResults = searchResultsList; searchResults != NULL;
+        for (searchResults = searchResultsList; searchResults;
              searchResults = searchResults->_next) {
             VIR_FREE(directoryAndFileName);
 
@@ -774,7 +774,7 @@ esxStorageVolLookupByKey(virConnectPtr conn, const char *key)
             }
 
             /* Build datastore path and query the UUID */
-            for (fileInfo = searchResults->file; fileInfo != NULL;
+            for (fileInfo = searchResults->file; fileInfo;
                  fileInfo = fileInfo->_next) {
                 VIR_FREE(datastorePath);
 
@@ -791,7 +791,7 @@ esxStorageVolLookupByKey(virConnectPtr conn, const char *key)
                                 volumeName) < 0)
                     goto cleanup;
 
-                if (esxVI_VmDiskFileInfo_DynamicCast(fileInfo) == NULL) {
+                if (!esxVI_VmDiskFileInfo_DynamicCast(fileInfo)) {
                     /* Only a VirtualDisk has a UUID */
                     continue;
                 }
@@ -871,7 +871,7 @@ esxStorageVolCreateXML(virStoragePoolPtr pool,
     /* Parse config */
     def = virStorageVolDefParseString(&poolDef, xmldesc);
 
-    if (def == NULL) {
+    if (!def) {
         goto cleanup;
     }
 
@@ -884,7 +884,7 @@ esxStorageVolCreateXML(virStoragePoolPtr pool,
     /* Validate config */
     tmp = strrchr(def->name, '/');
 
-    if (tmp == NULL || *def->name == '/' || tmp[1] == '\0') {
+    if (!tmp || *def->name == '/' || tmp[1] == '\0') {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Volume name '%s' doesn't have expected format "
                          "'<directory>/<file>'"), def->name);
@@ -912,14 +912,14 @@ esxStorageVolCreateXML(virStoragePoolPtr pool,
 
         directoryName = esxUtil_EscapeDatastoreItem(unescapedDirectoryName);
 
-        if (directoryName == NULL) {
+        if (!directoryName) {
             goto cleanup;
         }
 
         fileName = esxUtil_EscapeDatastoreItem(unescapedDirectoryAndFileName +
                                                strlen(unescapedDirectoryName) + 1);
 
-        if (fileName == NULL) {
+        if (!fileName) {
             goto cleanup;
         }
 
@@ -938,7 +938,7 @@ esxStorageVolCreateXML(virStoragePoolPtr pool,
             goto cleanup;
         }
 
-        if (fileInfo == NULL) {
+        if (!fileInfo) {
             if (esxVI_MakeDirectory(priv->primary, datastorePathWithoutFileName,
                                     priv->primary->datacenter->_reference,
                                     esxVI_Boolean_True) < 0) {
@@ -1030,7 +1030,7 @@ esxStorageVolCreateXML(virStoragePoolPtr pool,
                               &esxStorageBackendVMFS, NULL);
 
   cleanup:
-    if (virtualDiskSpec != NULL) {
+    if (virtualDiskSpec) {
         virtualDiskSpec->diskType = NULL;
         virtualDiskSpec->adapterType = NULL;
     }
@@ -1097,7 +1097,7 @@ esxStorageVolCreateXMLFrom(virStoragePoolPtr pool,
     /* Parse config */
     def = virStorageVolDefParseString(&poolDef, xmldesc);
 
-    if (def == NULL) {
+    if (!def) {
         goto cleanup;
     }
 
@@ -1110,7 +1110,7 @@ esxStorageVolCreateXMLFrom(virStoragePoolPtr pool,
     /* Validate config */
     tmp = strrchr(def->name, '/');
 
-    if (tmp == NULL || *def->name == '/' || tmp[1] == '\0') {
+    if (!tmp || *def->name == '/' || tmp[1] == '\0') {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Volume name '%s' doesn't have expected format "
                          "'<directory>/<file>'"), def->name);
@@ -1138,14 +1138,14 @@ esxStorageVolCreateXMLFrom(virStoragePoolPtr pool,
 
         directoryName = esxUtil_EscapeDatastoreItem(unescapedDirectoryName);
 
-        if (directoryName == NULL) {
+        if (!directoryName) {
             goto cleanup;
         }
 
         fileName = esxUtil_EscapeDatastoreItem(unescapedDirectoryAndFileName +
                                                strlen(unescapedDirectoryName) + 1);
 
-        if (fileName == NULL) {
+        if (!fileName) {
             goto cleanup;
         }
 
@@ -1164,7 +1164,7 @@ esxStorageVolCreateXMLFrom(virStoragePoolPtr pool,
             goto cleanup;
         }
 
-        if (fileInfo == NULL) {
+        if (!fileInfo) {
             if (esxVI_MakeDirectory(priv->primary, datastorePathWithoutFileName,
                                     priv->primary->datacenter->_reference,
                                     esxVI_Boolean_True) < 0) {
@@ -1353,7 +1353,7 @@ esxStorageVolGetInfo(virStorageVolPtr volume,
 
     info->type = VIR_STORAGE_VOL_FILE;
 
-    if (vmDiskFileInfo != NULL) {
+    if (vmDiskFileInfo) {
         /* Scale from kilobyte to byte */
         info->capacity = vmDiskFileInfo->capacityKb->value * 1024;
         info->allocation = vmDiskFileInfo->fileSize->value;
@@ -1421,18 +1421,18 @@ esxStorageVolGetXMLDesc(virStorageVolPtr volume,
     def.type = VIR_STORAGE_VOL_FILE;
     def.target.path = datastorePath;
 
-    if (vmDiskFileInfo != NULL) {
+    if (vmDiskFileInfo) {
         /* Scale from kilobyte to byte */
         def.capacity = vmDiskFileInfo->capacityKb->value * 1024;
         def.allocation = vmDiskFileInfo->fileSize->value;
 
         def.target.format = VIR_STORAGE_FILE_VMDK;
-    } else if (isoImageFileInfo != NULL) {
+    } else if (isoImageFileInfo) {
         def.capacity = fileInfo->fileSize->value;
         def.allocation = fileInfo->fileSize->value;
 
         def.target.format = VIR_STORAGE_FILE_ISO;
-    } else if (floppyImageFileInfo != NULL) {
+    } else if (floppyImageFileInfo) {
         def.capacity = fileInfo->fileSize->value;
         def.allocation = fileInfo->fileSize->value;
 
diff --git a/src/esx/esx_storage_driver.c b/src/esx/esx_storage_driver.c
index e692167..926c5f2 100644
--- a/src/esx/esx_storage_driver.c
+++ b/src/esx/esx_storage_driver.c
@@ -188,7 +188,7 @@ esxStoragePoolLookupByName(virConnectPtr conn, const char *name)
     for (i = 0; i < LAST_BACKEND; ++i) {
         pool = backends[i]->storagePoolLookupByName(conn, name);
 
-        if (pool != NULL) {
+        if (pool) {
             return pool;
         }
     }
@@ -217,7 +217,7 @@ esxStoragePoolLookupByUUID(virConnectPtr conn, const unsigned char *uuid)
     for (i = 0; i < LAST_BACKEND; ++i) {
         pool = backends[i]->storagePoolLookupByUUID(conn, uuid);
 
-        if (pool != NULL) {
+        if (pool) {
             return pool;
         }
     }
@@ -420,7 +420,7 @@ esxStorageVolLookupByKey(virConnectPtr conn, const char *key)
     for (i = 0; i < LAST_BACKEND; ++i) {
         volume = backends[i]->storageVolLookupByKey(conn, key);
 
-        if (volume != NULL) {
+        if (volume) {
             return volume;
         }
     }
-- 
1.8.1.2

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