!120 【轻量级 PR】: 添加了指针释放，修复了部分内存泄漏

Merge pull request !120 from 叫我去复习/master

src/cm_ctl/ctl_misc.cpp

@@ -1656,6 +1656,7 @@ char *DoConcatCmd(const CtlOption *ctx)
     int rc = memset_s(cmd, CM_PATH_LENGTH, 0, CM_PATH_LENGTH);
     securec_check_errno(rc, (void)rc);
     if (DoCheckRole(&ctx->dcfOption) == -1) {
+        free(cmd);
         return NULL;
     }
 

src/cm_ctl/ctl_param_check.cpp

@@ -304,6 +304,7 @@ char *GetParamLineInfo(const char *paramName, const char * const *paramInfos, in
 
     if (paramInfos == NULL) {
         write_runlog(ERROR, "Fail to get param info.\n");
+        free(info);
         return NULL;
     }