resolve static check warnings

src/client/src/tscAst.c

@@ -326,8 +326,8 @@ static tSQLSyntaxNode *createSyntaxTree(SSchema *pSchema, int32_t numOfCols, cha
     uint8_t localOptr = getBinaryExprOptr(&t0); 
     if (localOptr == 0) {
       pError("not support binary operator:%d", t0.type);
-      return NULL;
       free(pBinExpr)
+      return NULL;
     }
 
     return parseRemainStr(str, pBinExpr, pSchema, localOptr, numOfCols, i);

src/client/src/tscJoinProcess.c

@@ -733,6 +733,7 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
 
   pTSBuf->f = fopen(pTSBuf->path, "r");
   if (pTSBuf->f == NULL) {
+    free(pTSBuf); 
     return NULL;
   }
 
@@ -774,7 +775,7 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
   size_t infoSize = sizeof(STSVnodeBlockInfo) * pTSBuf->numOfVnodes;
 
   STSVnodeBlockInfo* buf = (STSVnodeBlockInfo*)calloc(1, infoSize);
-  int64_t pos = ftell(pTSBuf->f);
+  //int64_t pos = ftell(pTSBuf->f); //pos not used
   fread(buf, infoSize, 1, pTSBuf->f);
 
   // the length value for each vnode is not kept in file, so does not set the length value
@@ -1250,6 +1251,10 @@ bool tsBufNextPos(STSBuf* pTSBuf) {
           pCur->vnodeIndex = -1;
           return false;
         }
+        
+        if (pBlockInfo == NULL) {
+          return false;
+        }
 
         int32_t blockIndex = pCur->order == TSQL_SO_ASC ? 0 : pBlockInfo->numOfBlocks - 1;
         tsBufGetBlock(pTSBuf, pCur->vnodeIndex + step, blockIndex);