examples: fix typos

Author: igorsafo

examples/simple_net.cpp

@@ -168,8 +168,8 @@ void simple_net(){
     auto pool_indices_memory = memory(pool_pd.workspace_primitive_desc());
 
     /* create pooling primitive an add it to net */
-    net.push_back(pooling_forward(pool_pd, lrn_dst_memory, pool_indices_memory,
-        pool_dst_memory));
+    net.push_back(pooling_forward(pool_pd, lrn_dst_memory, pool_dst_memory,
+        pool_indices_memory));
 
     /* create reorder between internal and user data if it is needed and
      *  add it to net after pooling */

examples/simple_training_net.c

@@ -582,14 +582,15 @@ mkldnn_status_t simple_net()
     mkldnn_primitive_at_t lrn_diff_dsts[]
             = { mkldnn_primitive_at(relu_dst_memory,
                                     0), // lrn_bwd requires src as first input
-                mkldnn_primitive_at(pool_diff_dst_memory, 0),
+                mkldnn_primitive_at(pool_diff_src_memory, 0),
                 mkldnn_primitive_at(lrn_workspace_memory, 0) };
 
     const_mkldnn_primitive_t lrn_diff_srcs[] = { lrn_diff_src_memory };
 
     /* finally create backward lrn primitive */
     mkldnn_primitive_t lrn_bwd;
-    mkldnn_primitive_create(&lrn_bwd, lrn_bwd_pd, lrn_diff_dsts, lrn_diff_srcs);
+    CHECK(mkldnn_primitive_create(&lrn_bwd, lrn_bwd_pd, lrn_diff_dsts,
+             lrn_diff_srcs));
 
     /* Backward relu */
     const mkldnn_memory_desc_t *relu_diff_dst_md