[Beignet] [PATCH] GBE: fix a errMsg uninitialized build warning.

[Yang Rong]

Signed-off-by: Yang Rong <rong.r.yang at intel.com>
---
 backend/src/backend/gen_program.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/backend/src/backend/gen_program.cpp b/backend/src/backend/gen_program.cpp
index e7a88b4..f767b6b 100644
--- a/backend/src/backend/gen_program.cpp
+++ b/backend/src/backend/gen_program.cpp
@@ -510,7 +510,7 @@ namespace gbe {
   {
 #ifdef GBE_COMPILER_AVAILABLE
     using namespace gbe;
-    char* errMsg;
+    char* errMsg = NULL;
     if(((GenProgram*)dst_program)->module == NULL){
 #if LLVM_VERSION_MAJOR * 10 + LLVM_VERSION_MINOR >= 38
       ((GenProgram*)dst_program)->module = llvm::CloneModule((llvm::Module*)((GenProgram*)src_program)->module).release();
@@ -518,7 +518,7 @@ namespace gbe {
       ((GenProgram*)dst_program)->module = llvm::CloneModule((llvm::Module*)((GenProgram*)src_program)->module);
 #endif
       errSize = 0;
-    }else{
+    } else {
 #if LLVM_VERSION_MAJOR * 10 + LLVM_VERSION_MINOR >= 39
       // Src now will be removed automatically. So clone it.
       llvm::Module* src = llvm::CloneModule((llvm::Module*)((GenProgram*)src_program)->module).release();
@@ -534,7 +534,7 @@ namespace gbe {
 #else
       if (LLVMLinkModules(wrap(dst), wrap(src), LLVMLinkerPreserveSource, &errMsg)) {
 #endif
-        if (err != NULL && errSize != NULL && stringSize > 0u) {
+        if (err != NULL && errSize != NULL && stringSize > 0u && errMsg) {
           strncpy(err, errMsg, stringSize-1);
           err[stringSize-1] = '\0';
           *errSize = strlen(err);
-- 
2.1.4