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lib: Use more of VIR_STEAL_PTR()

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We have this very handy macro called VIR_STEAL_PTR() which steals
one pointer into the other and sets the other to NULL. The
following coccinelle patch was used to create this commit:

  @ rule1 @
  identifier a, b;
  @@

  - b = a;
    ...
  - a = NULL;
  + VIR_STEAL_PTR(b, a);

Some places were clean up afterwards to make syntax-check happy
(e.g. some curly braces were removed where the body become a one
liner).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Michal Privoznik 2019-01-28 14:41:37 +01:00
parent 7c700108d6
commit 5772885d28
22 changed files with 50 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/conf/domain_addr.c
View File

@ -1757,8 +1757,7 @@ virDomainVirtioSerialAddrSetCreateFromDomain(virDomainDefPtr def)
addrs) < 0)
goto cleanup;
ret = addrs;
addrs = NULL;
VIR_STEAL_PTR(ret, addrs);
cleanup:
virDomainVirtioSerialAddrSetFree(addrs);
return ret;
@ -2095,8 +2094,7 @@ virDomainUSBAddressHubNew(size_t nports)
goto cleanup;
hub->nports = nports;
ret = hub;
hub = NULL;
VIR_STEAL_PTR(ret, hub);
cleanup:
virDomainUSBAddressHubFree(hub);
return ret;

21
src/conf/domain_conf.c
View File

@ -7900,8 +7900,7 @@ virDomainNetIPParseXML(xmlNodePtr node)
goto cleanup;
}
ret = ip;
ip = NULL;
VIR_STEAL_PTR(ret, ip);
cleanup:
VIR_FREE(prefixStr);
@ -13482,10 +13481,8 @@ virDomainGraphicsListenDefParseXML(virDomainGraphicsListenDefPtr def,
goto error;
}
if (!address) {
address = addressCompat;
addressCompat = NULL;
}
if (!address)
VIR_STEAL_PTR(address, addressCompat);
}
if (def->type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET) {
@ -13497,10 +13494,8 @@ virDomainGraphicsListenDefParseXML(virDomainGraphicsListenDefPtr def,
goto error;
}
if (!socketPath) {
socketPath = socketCompat;
socketCompat = NULL;
}
if (!socketPath)
VIR_STEAL_PTR(socketPath, socketCompat);
}
if (address && address[0] &&
@ -14747,8 +14742,7 @@ virDomainShmemDefParseXML(virDomainXMLOptionPtr xmlopt,
goto cleanup;
ret = def;
def = NULL;
VIR_STEAL_PTR(ret, def);
cleanup:
ctxt->node = save;
VIR_FREE(tmp);
@ -16187,8 +16181,7 @@ virDomainIOMMUDefParseXML(xmlNodePtr node,
}
}
ret = iommu;
iommu = NULL;
VIR_STEAL_PTR(ret, iommu);
cleanup:
ctxt->node = save;

3
src/conf/secret_conf.c
View File

@ -193,8 +193,7 @@ secretXMLParseNode(xmlDocPtr xml, xmlNodePtr root)
if (virXPathNode("./usage", ctxt) != NULL
&& virSecretDefParseUsage(ctxt, def) < 0)
goto cleanup;
ret = def;
def = NULL;
VIR_STEAL_PTR(ret, def);
cleanup:
VIR_FREE(prop);

3
src/conf/storage_conf.c
View File

@ -587,8 +587,7 @@ virStoragePoolDefParseSourceString(const char *srcSpec,
node) < 0)
goto cleanup;
ret = def;
def = NULL;
VIR_STEAL_PTR(ret, def);
cleanup:
virStoragePoolSourceFree(def);
xmlFreeDoc(doc);

3
src/conf/virnetworkobj.c
View File

@ -602,8 +602,7 @@ virNetworkObjAssignDefLocked(virNetworkObjListPtr nets,
obj->persistent = !(flags & VIR_NETWORK_OBJ_LIST_ADD_LIVE);
}
ret = obj;
obj = NULL;
VIR_STEAL_PTR(ret, obj);
cleanup:
virNetworkObjEndAPI(&obj);

3
src/conf/virsecretobj.c
View File

@ -394,8 +394,7 @@ virSecretObjListAdd(virSecretObjListPtr secrets,
virObjectRef(obj);
}
ret = obj;
obj = NULL;
VIR_STEAL_PTR(ret, obj);
cleanup:
virSecretObjEndAPI(&obj);

12
src/libvirt-domain.c
View File

@ -3046,9 +3046,8 @@ virDomainMigrateVersion3Full(virDomainPtr domain,
VIR_MIGRATE_AUTO_CONVERGE);
VIR_DEBUG("Prepare3 %p flags=0x%x", dconn, destflags);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
if (useParams) {
if (virTypedParamsReplaceString(&params, &nparams,
@ -3111,9 +3110,8 @@ virDomainMigrateVersion3Full(virDomainPtr domain,
*/
VIR_DEBUG("Perform3 %p uri=%s", domain->conn, uri);
VIR_FREE(cookiein);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
/* dconnuri not relevant in non-P2P modes, so left NULL here */
if (useParams) {
@ -3150,9 +3148,8 @@ virDomainMigrateVersion3Full(virDomainPtr domain,
*/
VIR_DEBUG("Finish3 %p ret=%d", dconn, ret);
VIR_FREE(cookiein);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
if (useParams) {
if (virTypedParamsGetString(params, nparams,
@ -3227,9 +3224,8 @@ virDomainMigrateVersion3Full(virDomainPtr domain,
if (notify_source) {
VIR_DEBUG("Confirm3 %p ret=%d domain=%p", domain->conn, ret, domain);
VIR_FREE(cookiein);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
if (useParams) {
ret = domain->conn->driver->domainMigrateConfirm3Params

3
src/phyp/phyp_driver.c
View File

@ -1468,8 +1468,7 @@ phypGetBackingDevice(virConnectPtr conn, const char *managed_system,
if (VIR_STRDUP(backing_device, char_ptr) < 0)
goto cleanup;
} else {
backing_device = ret;
ret = NULL;
VIR_STEAL_PTR(backing_device, ret);
}
char_ptr = strchr(backing_device, '\n');

6
src/qemu/qemu_domain.c
View File

@ -11645,8 +11645,7 @@ qemuDomainCreateDeviceRecursive(const char *device,
}
VIR_FREE(devTmp);
VIR_FREE(target);
target = tmp;
tmp = NULL;
VIR_STEAL_PTR(target, tmp);
}
if (qemuDomainCreateDeviceRecursive(target, data,
@ -12601,8 +12600,7 @@ qemuDomainAttachDeviceMknodRecursive(virQEMUDriverPtr driver,
}
VIR_FREE(fileTmp);
VIR_FREE(target);
target = tmp;
tmp = NULL;
VIR_STEAL_PTR(target, tmp);
}
data.target = target;

12
src/qemu/qemu_driver.c
View File

@ -6655,11 +6655,9 @@ qemuDomainSaveImageUpdateDef(virQEMUDriverPtr driver,
virFreeError(err);
/* use the user provided XML */
ret = newdef;
newdef = NULL;
VIR_STEAL_PTR(ret, newdef);
} else {
ret = newdef_migr;
newdef_migr = NULL;
VIR_STEAL_PTR(ret, newdef_migr);
}
cleanup:
@ -12705,10 +12703,8 @@ qemuDomainMigratePerform(virDomainPtr dom,
goto cleanup;
}
if (flags & VIR_MIGRATE_PEER2PEER) {
dconnuri = uri;
uri = NULL;
}
if (flags & VIR_MIGRATE_PEER2PEER)
VIR_STEAL_PTR(dconnuri, uri);
/* Do not output cookies in v2 protocol, since the cookie
* length was not sufficiently large, causing failures

12
src/qemu/qemu_migration.c
View File

@ -4170,9 +4170,8 @@ qemuMigrationSrcPerformPeer2Peer3(virQEMUDriverPtr driver,
VIR_MIGRATE_AUTO_CONVERGE);
VIR_DEBUG("Prepare3 %p", dconn);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
if (flags & VIR_MIGRATE_TUNNELLED) {
if (!(st = virStreamNew(dconn, 0)))
@ -4239,9 +4238,8 @@ qemuMigrationSrcPerformPeer2Peer3(virQEMUDriverPtr driver,
VIR_DEBUG("Perform3 %p uri=%s", sconn, NULLSTR(uri));
qemuMigrationJobSetPhase(driver, vm, QEMU_MIGRATION_PHASE_PERFORM3);
VIR_FREE(cookiein);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
if (flags & VIR_MIGRATE_TUNNELLED) {
ret = qemuMigrationSrcPerformTunnel(driver, vm, st, persist_xml,
@ -4281,9 +4279,8 @@ qemuMigrationSrcPerformPeer2Peer3(virQEMUDriverPtr driver,
*/
VIR_DEBUG("Finish3 %p ret=%d", dconn, ret);
VIR_FREE(cookiein);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
if (useParams) {
@ -4362,9 +4359,8 @@ qemuMigrationSrcPerformPeer2Peer3(virQEMUDriverPtr driver,
*/
VIR_DEBUG("Confirm3 %p cancelled=%d vm=%p", sconn, cancelled, vm);
VIR_FREE(cookiein);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
ret = qemuMigrationSrcConfirmPhase(driver, vm,
cookiein, cookieinlen,

3
src/security/virt-aa-helper.c
View File

@ -355,8 +355,7 @@ create_profile(const char *profile, const char *profile_name,
if (!(tmp = virStringReplace(pcontent, template_end, replace_files)))
goto clean_all;
VIR_FREE(pcontent);
pcontent = tmp;
tmp = NULL;
VIR_STEAL_PTR(pcontent, tmp);
}
/* write the file */

6
src/storage/storage_driver.c
View File

@ -1936,8 +1936,7 @@ storageVolCreateXML(virStoragePoolPtr pool,
VIR_INFO("Creating volume '%s' in storage pool '%s'",
newvol->name, def->name);
vol = newvol;
newvol = NULL;
VIR_STEAL_PTR(vol, newvol);
voldef = NULL;
cleanup:
@ -2130,8 +2129,7 @@ storageVolCreateXMLFrom(virStoragePoolPtr pool,
VIR_INFO("Creating volume '%s' in storage pool '%s'",
newvol->name, def->name);
vol = newvol;
newvol = NULL;
VIR_STEAL_PTR(vol, newvol);
voldef = NULL;
cleanup:

3
src/test/test_driver.c
View File

@ -5595,8 +5595,7 @@ testNodeDeviceCreateXML(virConnectPtr conn,
if (VIR_STRDUP(dev->parentName, def->parent) < 0)
goto cleanup;
ret = dev;
dev = NULL;
VIR_STEAL_PTR(ret, dev);
cleanup:
virNodeDeviceObjEndAPI(&obj);

18
src/util/virdbus.c
View File

@ -762,8 +762,7 @@ virDBusMessageIterEncode(DBusMessageIter *rootiter,
goto cleanup;
}
VIR_FREE(contsig);
iter = newiter;
newiter = NULL;
VIR_STEAL_PTR(iter, newiter);
types = t + 1;
nstruct = skiplen;
narray = (size_t)va_arg(args, int);
@ -789,8 +788,7 @@ virDBusMessageIterEncode(DBusMessageIter *rootiter,
VIR_FREE(newiter);
goto cleanup;
}
iter = newiter;
newiter = NULL;
VIR_STEAL_PTR(iter, newiter);
types = vsig;
nstruct = strlen(types);
narray = (size_t)-1;
@ -821,8 +819,7 @@ virDBusMessageIterEncode(DBusMessageIter *rootiter,
goto cleanup;
}
VIR_FREE(contsig);
iter = newiter;
newiter = NULL;
VIR_STEAL_PTR(iter, newiter);
types = t + 1;
nstruct = skiplen - 2;
narray = (size_t)-1;
@ -1059,8 +1056,7 @@ virDBusMessageIterDecode(DBusMessageIter *rootiter,
nstruct, narray) < 0)
goto cleanup;
VIR_FREE(contsig);
iter = newiter;
newiter = NULL;
VIR_STEAL_PTR(iter, newiter);
types = t + 1;
nstruct = skiplen;
if (arrayref) {
@ -1090,8 +1086,7 @@ virDBusMessageIterDecode(DBusMessageIter *rootiter,
VIR_DEBUG("Push failed");
goto cleanup;
}
iter = newiter;
newiter = NULL;
VIR_STEAL_PTR(iter, newiter);
types = vsig;
nstruct = strlen(types);
narray = (size_t)-1;
@ -1118,8 +1113,7 @@ virDBusMessageIterDecode(DBusMessageIter *rootiter,
nstruct, narray) < 0)
goto cleanup;
VIR_FREE(contsig);
iter = newiter;
newiter = NULL;
VIR_STEAL_PTR(iter, newiter);
types = t + 1;
nstruct = skiplen - 2;
narray = (size_t)-1;

3
src/util/virrotatingfile.c
View File

@ -406,8 +406,7 @@ virRotatingFileWriterRollover(virRotatingFileWriterPtr file)
}
VIR_FREE(nextpath);
nextpath = thispath;
thispath = NULL;
VIR_STEAL_PTR(nextpath, thispath);
}
}

6
src/util/virstoragefile.c
View File

@ -1233,8 +1233,7 @@ virStorageFileGetMetadataFromFD(const char *path,
* update the metadata.*/
meta->type = VIR_STORAGE_TYPE_DIR;
meta->format = VIR_STORAGE_FILE_DIR;
ret = meta;
meta = NULL;
VIR_STEAL_PTR(ret, meta);
goto cleanup;
}
@ -1256,8 +1255,7 @@ virStorageFileGetMetadataFromFD(const char *path,
else if (S_ISBLK(sb.st_mode))
meta->type = VIR_STORAGE_TYPE_BLOCK;
ret = meta;
meta = NULL;
VIR_STEAL_PTR(ret, meta);
cleanup:
virStorageSourceFree(meta);

14
src/vz/vz_driver.c
View File

@ -182,12 +182,8 @@ vzDestroyDriverConnection(void)
vzConnPtr privconn_list;
virMutexLock(&vz_driver_lock);
driver = vz_driver;
vz_driver = NULL;
privconn_list = vz_conn_list;
vz_conn_list = NULL;
VIR_STEAL_PTR(driver, vz_driver);
VIR_STEAL_PTR(privconn_list, vz_conn_list);
virMutexUnlock(&vz_driver_lock);
while (privconn_list) {
@ -3203,9 +3199,8 @@ vzDomainMigratePerformP2P(virDomainObjPtr dom,
VIR_MIGRATE_PARAM_DEST_XML, dom_xml) < 0)
goto done;
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
virObjectUnlock(dom);
ret = dconn->driver->domainMigratePrepare3Params
@ -3226,9 +3221,8 @@ vzDomainMigratePerformP2P(virDomainObjPtr dom,
}
VIR_FREE(cookiein);
cookiein = cookieout;
VIR_STEAL_PTR(cookiein, cookieout);
cookieinlen = cookieoutlen;
cookieout = NULL;
cookieoutlen = 0;
if (vzDomainMigratePerformStep(dom, driver, params, nparams, cookiein,
cookieinlen, flags) < 0) {

6
src/vz/vz_sdk.c
View File

@ -928,8 +928,7 @@ prlsdkParseNetAddress(char *addr)
goto cleanup;
ip->prefix = nbits;
ret = ip;
ip = NULL;
VIR_STEAL_PTR(ret, ip);
cleanup:
if (!ret)
@ -4768,8 +4767,7 @@ prlsdkParseSnapshotTree(const char *treexml)
goto cleanup;
}
ret = snapshots;
snapshots = NULL;
VIR_STEAL_PTR(ret, snapshots);
cleanup:
virDomainSnapshotObjListFree(snapshots);

3
tests/networkxml2conftest.c
View File

@ -51,8 +51,7 @@ testCompareXMLToConfFiles(const char *inxml, const char *outconf, dnsmasqCapsPtr
"except-interface=lo\n")))
goto fail;
VIR_FREE(actual);
actual = tmp;
tmp = NULL;
VIR_STEAL_PTR(actual, tmp);
#endif
if (virTestCompareToFile(actual, outconf) < 0)

3
tools/virsh-domain.c
View File

@ -8423,8 +8423,7 @@ cmdDesc(vshControl *ctl, const vshCmd *cmd)
}
VIR_FREE(desc);
desc = desc_edited;
desc_edited = NULL;
VIR_STEAL_PTR(desc, desc_edited);
}
if (virDomainSetMetadata(dom, type, desc, NULL, NULL, flags) < 0) {

3
tools/virsh-snapshot.c
View File

@ -1356,8 +1356,7 @@ virshSnapshotListCollect(vshControl *ctl, virDomainPtr dom,
virshSnapSorter);
snaplist->nsnaps -= deleted;
ret = snaplist;
snaplist = NULL;
VIR_STEAL_PTR(ret, snaplist);
cleanup:
virshSnapshotListFree(snaplist);