[libvirt] [PATCH 05/15] storage: Use VIR_AUTOPTR(virString)
John Ferlan
jferlan at redhat.com
Wed Feb 6 13:41:37 UTC 2019
Let's make use of the auto __cleanup capabilities cleaning up any
now unnecessary goto paths.
Signed-off-by: John Ferlan <jferlan at redhat.com>
---
src/storage/storage_backend_iscsi_direct.c | 3 +-
src/storage/storage_backend_sheepdog.c | 6 +--
src/storage/storage_backend_zfs.c | 15 ++----
src/util/virstoragefile.c | 58 ++++++++--------------
4 files changed, 28 insertions(+), 54 deletions(-)
diff --git a/src/storage/storage_backend_iscsi_direct.c b/src/storage/storage_backend_iscsi_direct.c
index f287fbf010..82fa4d7a25 100644
--- a/src/storage/storage_backend_iscsi_direct.c
+++ b/src/storage/storage_backend_iscsi_direct.c
@@ -411,7 +411,7 @@ virISCSIDirectUpdateTargets(struct iscsi_context *iscsi,
struct iscsi_discovery_address *addr;
struct iscsi_discovery_address *tmp_addr;
size_t tmp_ntargets = 0;
- char **tmp_targets = NULL;
+ VIR_AUTOPTR(virString) tmp_targets = NULL;
if (!(addr = iscsi_discovery_sync(iscsi))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -439,7 +439,6 @@ virISCSIDirectUpdateTargets(struct iscsi_context *iscsi,
ret = 0;
cleanup:
iscsi_free_discovery_data(iscsi, addr);
- virStringListFreeCount(tmp_targets, tmp_ntargets);
return ret;
}
diff --git a/src/storage/storage_backend_sheepdog.c b/src/storage/storage_backend_sheepdog.c
index 7cba6e02aa..458dbca58b 100644
--- a/src/storage/storage_backend_sheepdog.c
+++ b/src/storage/storage_backend_sheepdog.c
@@ -138,8 +138,8 @@ virStorageBackendSheepdogRefreshAllVol(virStoragePoolObjPtr pool)
{
int ret = -1;
char *output = NULL;
- char **lines = NULL;
- char **cells = NULL;
+ VIR_AUTOPTR(virString) lines = NULL;
+ VIR_AUTOPTR(virString) cells = NULL;
size_t i;
virCommandPtr cmd = virCommandNewArgList(SHEEPDOGCLI, "vdi", "list", "-r", NULL);
@@ -173,8 +173,6 @@ virStorageBackendSheepdogRefreshAllVol(virStoragePoolObjPtr pool)
cleanup:
virCommandFree(cmd);
- virStringListFree(lines);
- virStringListFree(cells);
VIR_FREE(output);
return ret;
}
diff --git a/src/storage/storage_backend_zfs.c b/src/storage/storage_backend_zfs.c
index ec39d9403b..f728477c2a 100644
--- a/src/storage/storage_backend_zfs.c
+++ b/src/storage/storage_backend_zfs.c
@@ -104,9 +104,9 @@ virStorageBackendZFSParseVol(virStoragePoolObjPtr pool,
const char *volume_string)
{
int ret = -1;
- char **tokens;
size_t count;
- char **name_tokens = NULL;
+ VIR_AUTOPTR(virString) tokens = NULL;
+ VIR_AUTOPTR(virString) name_tokens = NULL;
char *vol_name;
bool is_new_vol = false;
virStorageVolDefPtr volume = NULL;
@@ -169,8 +169,6 @@ virStorageBackendZFSParseVol(virStoragePoolObjPtr pool,
ret = 0;
cleanup:
- virStringListFree(tokens);
- virStringListFree(name_tokens);
if (is_new_vol)
virStorageVolDefFree(volume);
return ret;
@@ -183,7 +181,7 @@ virStorageBackendZFSFindVols(virStoragePoolObjPtr pool,
virStoragePoolDefPtr def = virStoragePoolObjGetDef(pool);
virCommandPtr cmd = NULL;
char *volumes_list = NULL;
- char **lines = NULL;
+ VIR_AUTOPTR(virString) lines = NULL;
size_t i;
/**
@@ -221,7 +219,6 @@ virStorageBackendZFSFindVols(virStoragePoolObjPtr pool,
cleanup:
virCommandFree(cmd);
- virStringListFree(lines);
VIR_FREE(volumes_list);
return 0;
@@ -233,8 +230,8 @@ virStorageBackendZFSRefreshPool(virStoragePoolObjPtr pool ATTRIBUTE_UNUSED)
virStoragePoolDefPtr def = virStoragePoolObjGetDef(pool);
virCommandPtr cmd = NULL;
char *zpool_props = NULL;
- char **lines = NULL;
- char **tokens = NULL;
+ VIR_AUTOPTR(virString) lines = NULL;
+ VIR_AUTOPTR(virString) tokens = NULL;
size_t i;
/**
@@ -296,8 +293,6 @@ virStorageBackendZFSRefreshPool(virStoragePoolObjPtr pool ATTRIBUTE_UNUSED)
cleanup:
virCommandFree(cmd);
- virStringListFree(lines);
- virStringListFree(tokens);
VIR_FREE(zpool_props);
return 0;
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index b3f5e0204d..cd2437a03e 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -1594,11 +1594,10 @@ virStorageFileParseBackingStoreStr(const char *str,
char **target,
unsigned int *chainIndex)
{
- char **strings = NULL;
+ VIR_AUTOPTR(virString) strings = NULL;
size_t nstrings;
unsigned int idx = 0;
char *suffix;
- int ret = -1;
*chainIndex = 0;
@@ -1608,19 +1607,15 @@ virStorageFileParseBackingStoreStr(const char *str,
if (nstrings == 2) {
if (virStrToLong_uip(strings[1], &suffix, 10, &idx) < 0 ||
STRNEQ(suffix, "]"))
- goto cleanup;
+ return -1;
}
if (target &&
VIR_STRDUP(*target, strings[0]) < 0)
- goto cleanup;
+ return -1;
*chainIndex = idx;
- ret = 0;
-
- cleanup:
- virStringListFreeCount(strings, nstrings);
- return ret;
+ return 0;
}
@@ -2677,7 +2672,7 @@ virStorageSourceParseBackingURI(virStorageSourcePtr src,
{
virURIPtr uri = NULL;
const char *path = NULL;
- char **scheme = NULL;
+ VIR_AUTOPTR(virString) scheme = NULL;
int ret = -1;
if (!(uri = virURIParse(uristr))) {
@@ -2772,7 +2767,6 @@ virStorageSourceParseBackingURI(virStorageSourcePtr src,
cleanup:
virURIFree(uri);
- virStringListFree(scheme);
return ret;
}
@@ -2783,7 +2777,7 @@ virStorageSourceRBDAddHost(virStorageSourcePtr src,
{
char *port;
size_t skip;
- char **parts;
+ VIR_AUTOPTR(virString) parts = NULL;
if (VIR_EXPAND_N(src->hosts, src->nhosts, 1) < 0)
return -1;
@@ -2808,7 +2802,6 @@ virStorageSourceRBDAddHost(virStorageSourcePtr src,
if (!parts)
goto error;
src->hosts[src->nhosts-1].name = virStringListJoin((const char **)parts, ":");
- virStringListFree(parts);
if (!src->hosts[src->nhosts-1].name)
goto error;
@@ -2940,16 +2933,15 @@ static int
virStorageSourceParseNBDColonString(const char *nbdstr,
virStorageSourcePtr src)
{
- char **backing = NULL;
- int ret = -1;
+ VIR_AUTOPTR(virString) backing = NULL;
if (!(backing = virStringSplit(nbdstr, ":", 0)))
- goto cleanup;
+ return -1;
/* we know that backing[0] now equals to "nbd" */
if (VIR_ALLOC_N(src->hosts, 1) < 0)
- goto cleanup;
+ return -1;
src->nhosts = 1;
src->hosts->transport = VIR_STORAGE_NET_HOST_TRANS_TCP;
@@ -2962,44 +2954,39 @@ virStorageSourceParseNBDColonString(const char *nbdstr,
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing remote information in '%s' for protocol nbd"),
nbdstr);
- goto cleanup;
+ return -1;
} else if (STREQ(backing[1], "unix")) {
if (!backing[2]) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing unix socket path in nbd backing string %s"),
nbdstr);
- goto cleanup;
+ return -1;
}
if (VIR_STRDUP(src->hosts->socket, backing[2]) < 0)
- goto cleanup;
+ return -1;
} else {
if (VIR_STRDUP(src->hosts->name, backing[1]) < 0)
- goto cleanup;
+ return -1;
if (!backing[2]) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing port in nbd string '%s'"),
nbdstr);
- goto cleanup;
+ return -1;
}
if (virStringParsePort(backing[2], &src->hosts->port) < 0)
- goto cleanup;
+ return -1;
}
if (backing[3] && STRPREFIX(backing[3], "exportname=")) {
if (VIR_STRDUP(src->path, backing[3] + strlen("exportname=")) < 0)
- goto cleanup;
+ return -1;
}
- ret = 0;
-
- cleanup:
- virStringListFree(backing);
-
- return ret;
+ return 0;
}
@@ -4250,9 +4237,8 @@ virStorageFileGetRelativeBackingPath(virStorageSourcePtr top,
int
virStorageFileCheckCompat(const char *compat)
{
- char **version;
+ VIR_AUTOPTR(virString) version = NULL;
unsigned int result;
- int ret = -1;
if (!compat)
return 0;
@@ -4263,13 +4249,9 @@ virStorageFileCheckCompat(const char *compat)
virStrToLong_ui(version[1], NULL, 10, &result) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("forbidden characters in 'compat' attribute"));
- goto cleanup;
+ return -1;
}
- ret = 0;
-
- cleanup:
- virStringListFree(version);
- return ret;
+ return 0;
}
--
2.20.1
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