s390x/cpumodel: Fix query-cpu-model-FOO error API violations
cpu_model_from_info() is a helper for qmp_query_cpu_model_expansion(), qmp_query_cpu_model_comparison(), qmp_query_cpu_model_baseline(). It dereferences @errp when the visitor or the QOM setter fails. That's wrong; see the big comment in error.h. Introduced in commit137974cea3
's390x/cpumodel: implement QMP interface "query-cpu-model-expansion"'. Its three callers have the same issue. Introduced in commit4e82ef0502
's390x/cpumodel: implement QMP interface "query-cpu-model-comparison"' and commitf1a47d08ef
's390x/cpumodel: implement QMP interface "query-cpu-model-baseline"'. No caller actually passes null. Fix anyway: splice in a local Error *err, and error_propagate(). Cc: David Hildenbrand <david@redhat.com> Cc: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20191204093625.14836-15-armbru@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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@ -477,6 +477,7 @@ CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
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static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info,
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Error **errp)
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{
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Error *err = NULL;
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const QDict *qdict = NULL;
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const QDictEntry *e;
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Visitor *visitor;
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@ -513,24 +514,26 @@ static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info,
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if (qdict) {
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visitor = qobject_input_visitor_new(info->props);
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visit_start_struct(visitor, NULL, NULL, 0, errp);
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if (*errp) {
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visit_start_struct(visitor, NULL, NULL, 0, &err);
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if (err) {
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error_propagate(errp, err);
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visit_free(visitor);
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object_unref(obj);
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return;
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}
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for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
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object_property_set(obj, visitor, e->key, errp);
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if (*errp) {
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object_property_set(obj, visitor, e->key, &err);
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if (err) {
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break;
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}
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}
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if (!*errp) {
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if (!err) {
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visit_check_struct(visitor, errp);
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}
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visit_end_struct(visitor, NULL);
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visit_free(visitor);
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if (*errp) {
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if (err) {
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error_propagate(errp, err);
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object_unref(obj);
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return;
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}
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@ -595,13 +598,15 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
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CpuModelInfo *model,
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Error **errp)
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{
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Error *err = NULL;
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CpuModelExpansionInfo *expansion_info = NULL;
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S390CPUModel s390_model;
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bool delta_changes = false;
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/* convert it to our internal representation */
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cpu_model_from_info(&s390_model, model, errp);
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if (*errp) {
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cpu_model_from_info(&s390_model, model, &err);
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if (err) {
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error_propagate(errp, err);
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return NULL;
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}
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@ -634,18 +639,21 @@ CpuModelCompareInfo *qmp_query_cpu_model_comparison(CpuModelInfo *infoa,
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CpuModelInfo *infob,
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Error **errp)
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{
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Error *err = NULL;
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CpuModelCompareResult feat_result, gen_result;
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CpuModelCompareInfo *compare_info;
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S390FeatBitmap missing, added;
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S390CPUModel modela, modelb;
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/* convert both models to our internal representation */
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cpu_model_from_info(&modela, infoa, errp);
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if (*errp) {
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cpu_model_from_info(&modela, infoa, &err);
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if (err) {
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error_propagate(errp, err);
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return NULL;
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}
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cpu_model_from_info(&modelb, infob, errp);
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if (*errp) {
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cpu_model_from_info(&modelb, infob, &err);
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if (err) {
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error_propagate(errp, err);
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return NULL;
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}
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compare_info = g_new0(CpuModelCompareInfo, 1);
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@ -707,6 +715,7 @@ CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *infoa,
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CpuModelInfo *infob,
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Error **errp)
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{
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Error *err = NULL;
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CpuModelBaselineInfo *baseline_info;
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S390CPUModel modela, modelb, model;
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uint16_t cpu_type;
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@ -714,13 +723,15 @@ CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *infoa,
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uint8_t max_gen;
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/* convert both models to our internal representation */
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cpu_model_from_info(&modela, infoa, errp);
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if (*errp) {
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cpu_model_from_info(&modela, infoa, &err);
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if (err) {
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error_propagate(errp, err);
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return NULL;
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}
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cpu_model_from_info(&modelb, infob, errp);
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if (*errp) {
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cpu_model_from_info(&modelb, infob, &err);
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if (err) {
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error_propagate(errp, err);
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return NULL;
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}
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