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hw: Don't call visit_end_struct() after visit_start_struct() fails 

When visit_start_struct() fails, visit_end_struct() must not be
called.  rtc_get_date() and balloon_stats_all() call it anyway.  As
far as I can tell, they're only used with the string output visitor,
which doesn't care.  Fix them anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
master
Markus Armbruster 2014-05-07 09:53:52 +02:00 committed by Luiz Capitulino
parent f9f3a5ecde
commit 2ddb16a95f
2 changed files with 34 additions and 14 deletions
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23
hw/timer/mc146818rtc.c
View File

@ -793,19 +793,26 @@ static const MemoryRegionOps cmos_ops = {
static void rtc_get_date(Object *obj, Visitor *v, void *opaque,
const char *name, Error **errp)
{
Error *err = NULL;
RTCState *s = MC146818_RTC(obj);
struct tm current_tm;
rtc_update_time(s);
rtc_get_time(s, &current_tm);
visit_start_struct(v, NULL, "struct tm", name, 0, errp);
visit_type_int32(v, &current_tm.tm_year, "tm_year", errp);
visit_type_int32(v, &current_tm.tm_mon, "tm_mon", errp);
visit_type_int32(v, &current_tm.tm_mday, "tm_mday", errp);
visit_type_int32(v, &current_tm.tm_hour, "tm_hour", errp);
visit_type_int32(v, &current_tm.tm_min, "tm_min", errp);
visit_type_int32(v, &current_tm.tm_sec, "tm_sec", errp);
visit_end_struct(v, errp);
visit_start_struct(v, NULL, "struct tm", name, 0, &err);
if (err) {
goto out;
}
visit_type_int32(v, &current_tm.tm_year, "tm_year", &err);
visit_type_int32(v, &current_tm.tm_mon, "tm_mon", &err);
visit_type_int32(v, &current_tm.tm_mday, "tm_mday", &err);
visit_type_int32(v, &current_tm.tm_hour, "tm_hour", &err);
visit_type_int32(v, &current_tm.tm_min, "tm_min", &err);
visit_type_int32(v, &current_tm.tm_sec, "tm_sec", &err);
visit_end_struct(v, &err);
out:
error_propagate(errp, err);
}
static void rtc_realizefn(DeviceState *dev, Error **errp)

25
hw/virtio/virtio-balloon.c
View File

@ -108,6 +108,7 @@ static void balloon_stats_poll_cb(void *opaque)
static void balloon_stats_get_all(Object *obj, struct Visitor *v,
void *opaque, const char *name, Error **errp)
{
Error *err = NULL;
VirtIOBalloon *s = opaque;
int i;
@ -116,17 +117,29 @@ static void balloon_stats_get_all(Object *obj, struct Visitor *v,
return;
}
visit_start_struct(v, NULL, "guest-stats", name, 0, errp);
visit_type_int(v, &s->stats_last_update, "last-update", errp);
visit_start_struct(v, NULL, "guest-stats", name, 0, &err);
if (err) {
goto out;
}
visit_start_struct(v, NULL, NULL, "stats", 0, errp);
visit_type_int(v, &s->stats_last_update, "last-update", &err);
visit_start_struct(v, NULL, NULL, "stats", 0, &err);
if (err) {
goto out_end;
}
for (i = 0; i < VIRTIO_BALLOON_S_NR; i++) {
visit_type_int64(v, (int64_t *) &s->stats[i], balloon_stat_names[i],
errp);
&err);
}
visit_end_struct(v, errp);
visit_end_struct(v, &err);
visit_end_struct(v, errp);
out_end:
visit_end_struct(v, &err);
out:
error_propagate(errp, err);
}
static void balloon_stats_get_poll_interval(Object *obj, struct Visitor *v,