Merge pull request #17298 from taosdata/fix/glzhao_coverity

fix: fix coverity issues

docs/examples/c/tmq_example.c

@@ -184,22 +184,54 @@ void tmq_commit_cb_print(tmq_t* tmq, int32_t code, void* param) {
 tmq_t* build_consumer() {
   tmq_conf_res_t code;
   tmq_conf_t*    conf = tmq_conf_new();
+
   code = tmq_conf_set(conf, "enable.auto.commit", "true");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
+
   code = tmq_conf_set(conf, "auto.commit.interval.ms", "1000");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
+
   code = tmq_conf_set(conf, "group.id", "cgrpName");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
+
   code = tmq_conf_set(conf, "client.id", "user defined name");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
+
   code = tmq_conf_set(conf, "td.connect.user", "root");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
+
   code = tmq_conf_set(conf, "td.connect.pass", "taosdata");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
+
   code = tmq_conf_set(conf, "auto.offset.reset", "earliest");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
+
   code = tmq_conf_set(conf, "experimental.snapshot.enable", "false");
-  if (TMQ_CONF_OK != code) return NULL;
+  if (TMQ_CONF_OK != code) {
+    tmq_conf_destroy(conf);
+    return NULL;
+  }
 
   tmq_conf_set_auto_commit_cb(conf, tmq_commit_cb_print, NULL);
 

source/common/src/tdataformat.c

@@ -411,7 +411,7 @@ _exit:
 
 int32_t tTSRowClone(const STSRow2 *pRow, STSRow2 **ppRow) {
   int32_t code = 0;
-  int32_t rLen;
+  int32_t rLen = 0;
 
   TSROW_LEN(pRow, rLen);
   (*ppRow) = (STSRow2 *)taosMemoryMalloc(rLen);
@@ -1678,8 +1678,8 @@ int32_t tColDataCopy(SColData *pColDataSrc, SColData *pColDataDest) {
   int32_t size;
 
   ASSERT(pColDataSrc->nVal > 0);
-  ASSERT(pColDataDest->cid = pColDataSrc->cid);
+  ASSERT(pColDataDest->cid == pColDataSrc->cid);
-  ASSERT(pColDataDest->type = pColDataSrc->type);
+  ASSERT(pColDataDest->type == pColDataSrc->type);
 
   pColDataDest->smaOn = pColDataSrc->smaOn;
   pColDataDest->nVal = pColDataSrc->nVal;

source/common/src/ttszip.c

@@ -52,10 +52,13 @@ STSBuf* tsBufCreate(bool autoDelete, int32_t order) {
   }
 
   if (!autoDelete) {
-    taosRemoveFile(pTSBuf->path);
+    if (taosRemoveFile(pTSBuf->path) != 0) {
+      taosMemoryFree(pTSBuf);
+      return NULL;
+    }
   }
 
-  if (NULL == allocResForTSBuf(pTSBuf)) {
+  if (allocResForTSBuf(pTSBuf) == NULL) {
     return NULL;
   }
 

source/libs/scalar/src/scalar.c

@@ -363,7 +363,11 @@ int32_t sclInitParam(SNode* node, SScalarParam *param, SScalarCtx *ctx, int32_t
       }
 
       SSDataBlock *block = *(SSDataBlock **)taosArrayGet(ctx->pBlockList, index);
-      if (NULL == block || ref->slotId >= taosArrayGetSize(block->pDataBlock)) {
+      if (NULL == block) {
+        SCL_ERR_RET(TSDB_CODE_QRY_INVALID_INPUT);
+      }
+
+      if (ref->slotId >= taosArrayGetSize(block->pDataBlock)) {
         sclError("column slotId is too big, slodId:%d, dataBlockSize:%d", ref->slotId, (int32_t)taosArrayGetSize(block->pDataBlock));
         SCL_ERR_RET(TSDB_CODE_QRY_INVALID_INPUT);
       }

source/libs/scalar/src/sclfunc.c

@@ -2002,7 +2002,7 @@ int32_t avgScalarFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *
     }
   }
 
-  if (hasNull) {
+  if (hasNull || (count == 0)) {
     colDataAppendNULL(pOutputData, 0);
   } else {
     if (IS_SIGNED_NUMERIC_TYPE(type)) {