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| author | Markus Armbruster <armbru@redhat.com> | 2019-12-04 10:36:22 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2019-12-14 10:25:50 +0100 |
| commit | 7dcb1baeaefee577ae73b9569215f426d48b4ffc (patch) | |
| tree | 2a06927c6dac727eaa70bd3e42e6e68bf0d0eab7 /target | |
| parent | e47970f51dc4926feea976e05a955408527d4a3c (diff) | |
| download | qemu-7dcb1baeaefee577ae73b9569215f426d48b4ffc.zip qemu-7dcb1baeaefee577ae73b9569215f426d48b4ffc.tar.gz qemu-7dcb1baeaefee577ae73b9569215f426d48b4ffc.tar.bz2 | |
s390x/cpumodel: Fix query-cpu-definitions error API violations
qmp_query_cpu_definitions() passes @errp to get_max_cpu_model(), then
frees any error it gets back. This effectively ignores errors.
Dereferencing @errp is wrong; see the big comment in error.h. Passing
@errp is also wrong, because it works only as long as @errp is neither
@error_fatal nor @error_abort. Introduced in commit 38cba1f4d8
"s390x: return unavailable features via query-cpu-definitions".
No caller actually passes such @errp values.
Fix anyway: simply pass NULL to get_max_cpu_model().
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: <20191204093625.14836-16-armbru@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/s390x/cpu_models.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index 3ed301b..547bab8 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -462,11 +462,7 @@ CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp) .list = NULL, }; - list_data.model = get_max_cpu_model(errp); - if (*errp) { - error_free(*errp); - *errp = NULL; - } + list_data.model = get_max_cpu_model(NULL); object_class_foreach(create_cpu_model_list, TYPE_S390_CPU, false, &list_data); |