From ac3aa771586ee22bef976a79f2960735ba5a74dd Mon Sep 17 00:00:00 2001
From: Yizhi Liu <liuyizhi@apache.org>
Date: Thu, 4 Apr 2019 19:49:08 -0700
Subject: [PATCH] [tvm4j] provide error msg for failure function call (#2967)

---
 jvm/native/src/main/native/ml_dmlc_tvm_native_c_api.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/jvm/native/src/main/native/ml_dmlc_tvm_native_c_api.cc b/jvm/native/src/main/native/ml_dmlc_tvm_native_c_api.cc
index fada50ca76e2..d22e0459cdbc 100644
--- a/jvm/native/src/main/native/ml_dmlc_tvm_native_c_api.cc
+++ b/jvm/native/src/main/native/ml_dmlc_tvm_native_c_api.cc
@@ -178,6 +178,10 @@ JNIEXPORT jint JNICALL Java_ml_dmlc_tvm_LibInfo_tvmFuncCall(
   int ret = TVMFuncCall(reinterpret_cast<TVMFunctionHandle>(jhandle),
     &argValues[0], &argTypes[0], numArgs, &retVal, &retTypeCode);
 
+  if (ret != 0) {
+    return ret;
+  }
+
   for (auto iter = pushedStrs.cbegin(); iter != pushedStrs.cend(); iter++) {
     env->ReleaseStringUTFChars(iter->first, iter->second);
     env->DeleteGlobalRef(iter->first);