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qemuMigrationCookieCapsXMLParse: Refactor memory handling

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Use modern allocators, automatic memory feeing, and decrease the scope
of some variables to remove the 'cleanup' label.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Peter Krempa 2020-10-02 09:53:54 +02:00
parent 9d7ca30ece
commit 83434e5acd
1 changed files with 9 additions and 22 deletions
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31
src/qemu/qemu_migration_cookie.c
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@ -1054,29 +1054,26 @@ qemuMigrationCookieStatisticsXMLParse(xmlXPathContextPtr ctxt)
static qemuMigrationCookieCapsPtr
qemuMigrationCookieCapsXMLParse(xmlXPathContextPtr ctxt)
{
qemuMigrationCookieCapsPtr caps = NULL;
xmlNodePtr *nodes = NULL;
qemuMigrationCookieCapsPtr ret = NULL;
char *name = NULL;
char *automatic = NULL;
int cap;
g_autoptr(qemuMigrationCookieCaps) caps = g_new0(qemuMigrationCookieCaps, 1);
g_autofree xmlNodePtr *nodes = NULL;
size_t i;
int n;
if (VIR_ALLOC(caps) < 0)
return NULL;
caps->supported = virBitmapNew(QEMU_MIGRATION_CAP_LAST);
caps->automatic = virBitmapNew(QEMU_MIGRATION_CAP_LAST);
if ((n = virXPathNodeSet("./capabilities[1]/cap", ctxt, &nodes)) < 0)
goto cleanup;
return NULL;
for (i = 0; i < n; i++) {
g_autofree char *name = NULL;
g_autofree char *automatic = NULL;
int cap;
if (!(name = virXMLPropString(nodes[i], "name"))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing migration capability name"));
goto cleanup;
return NULL;
}
if ((cap = qemuMigrationCapabilityTypeFromString(name)) < 0)
@ -1087,19 +1084,9 @@ qemuMigrationCookieCapsXMLParse(xmlXPathContextPtr ctxt)
if ((automatic = virXMLPropString(nodes[i], "auto")) &&
STREQ(automatic, "yes"))
ignore_value(virBitmapSetBit(caps->automatic, cap));
VIR_FREE(name);
VIR_FREE(automatic);
}
ret = g_steal_pointer(&caps);
cleanup:
qemuMigrationCookieCapsFree(caps);
VIR_FREE(nodes);
VIR_FREE(name);
VIR_FREE(automatic);
return ret;
return g_steal_pointer(&caps);
}