check vector emptiness before access it

Signed-off-by: Li Peng <peng.li@intel.com>
7 years ago · c43498c6ad
parent 389fa5d38e
commit c43498c6ad
1 changed files with 5 additions and 2 deletions
--- a/modules/dnn/src/dnn.cpp
+++ b/modules/dnn/src/dnn.cpp
@ -1265,12 +1265,15 @@ struct Net::Impl
                        ld.outputBlobsWrappers = layers[lpNext.lid].outputBlobsWrappers;

                        if ( preferableTarget == DNN_TARGET_OPENCL )
+                        {
+                            if ( !activData->consumers.empty() )
                            {
                                nextData = &layers[activData->consumers[0].lid];
                                lpNext = LayerPin(activData->consumers[0].lid, 0);
                            }
                        }
                    }
+                }

                // fuse convlution layer followed by eltwise + relu
                if ( preferableTarget == DNN_TARGET_OPENCL )