modeld: delete wide_frame in model_free (#25562)

selfdrive/modeld/models/driving.cc

@@ -97,6 +97,7 @@ ModelOutput* model_eval_frame(ModelState* s, VisionBuf* buf, VisionBuf* wbuf,
 
 void model_free(ModelState* s) {
   delete s->frame;
+  delete s->wide_frame;
 }
 
 void fill_lead(cereal::ModelDataV2::LeadDataV3::Builder lead, const ModelOutputLeads &leads, int t_idx, float prob_t) {

selfdrive/modeld/models/driving.h

@@ -253,8 +253,8 @@ constexpr int NET_OUTPUT_SIZE = OUTPUT_SIZE + TEMPORAL_SIZE;
 
 // TODO: convert remaining arrays to std::array and update model runners
 struct ModelState {
-  ModelFrame *frame;
-  ModelFrame *wide_frame;
+  ModelFrame *frame = nullptr;
+  ModelFrame *wide_frame = nullptr;
   std::array<float, NET_OUTPUT_SIZE> output = {};
   std::unique_ptr<RunModel> m;
 #ifdef DESIRE