fix:compile error in sml

source/client/src/clientSml.c

@@ -2450,6 +2450,7 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
     return NULL;
   }
 
+  int    batchs = 0;
   pTscObj->schemalessType = 1;
   SSmlMsgBuf msg = {ERROR_MSG_BUF_DEFAULT_SIZE, request->msgBuf};
 
@@ -2497,8 +2498,8 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
     goto end;
   }
 
-  int    cnt = ceil(((double)numLines) / LINE_BATCH);
-  for (int i = 0; i < cnt; ++i) {
+  batchs = ceil(((double)numLines) / LINE_BATCH);
+  for (int i = 0; i < batchs; ++i) {
     SRequestObj* req = (SRequestObj*)createRequest(pTscObj, TSDB_SQL_INSERT);
     if(!req){
       request->code = TSDB_CODE_OUT_OF_MEMORY;