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fix(observer): fix sizeof typo and add strdup NULL check (#9983)

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红桃六
2026-04-20 16:42:30 +08:00
committed by GitHub
parent 670a057898
commit fafdf495a8
1 changed files with 7 additions and 2 deletions
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src/core/lv_observer.c
+7 -2
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@@ -732,7 +732,7 @@ void lv_obj_add_subject_set_string_event(lv_obj_t * obj, lv_subject_t * subject,
return; return;
} }
subject_set_string_user_data_t * user_data = lv_malloc(sizeof(subject_set_int_user_data_t)); subject_set_string_user_data_t * user_data = lv_malloc(sizeof(subject_set_string_user_data_t));
if(user_data == NULL) { if(user_data == NULL) {
LV_ASSERT_MALLOC(user_data); LV_ASSERT_MALLOC(user_data);
LV_LOG_WARN("Couldn't allocate user_data"); LV_LOG_WARN("Couldn't allocate user_data");
@@ -741,7 +741,12 @@ void lv_obj_add_subject_set_string_event(lv_obj_t * obj, lv_subject_t * subject,
user_data->subject = subject; user_data->subject = subject;
user_data->value = lv_strdup(value); user_data->value = lv_strdup(value);
LV_ASSERT_MALLOC(user_data->value); if(user_data->value == NULL) {
LV_ASSERT_MALLOC(user_data->value);
LV_LOG_WARN("Couldn't allocate string value");
lv_free(user_data);
return;
}
lv_obj_add_event_cb(obj, subject_set_string_cb, trigger, user_data); lv_obj_add_event_cb(obj, subject_set_string_cb, trigger, user_data);
lv_obj_add_event_cb(obj, subject_set_string_free_user_data_event_cb, LV_EVENT_DELETE, user_data); lv_obj_add_event_cb(obj, subject_set_string_free_user_data_event_cb, LV_EVENT_DELETE, user_data);