diff --git a/framework/support/platform/src/hdmi/hdmi_dfm.c b/framework/support/platform/src/hdmi/hdmi_dfm.c
index ffc89fe7a790ab3283e5b4d18d1cfaddb37f63dd..2e083d5cd0e733244af213c695908010c4680ae9 100644
--- a/framework/support/platform/src/hdmi/hdmi_dfm.c
+++ b/framework/support/platform/src/hdmi/hdmi_dfm.c
@@ -79,7 +79,7 @@ static void HdmiDfmBaseInfoInit(struct HdmiDfmInfo *info, const struct HdmiDfmPa
         return;
     }
 
-    /* 2. Determine the minimum Video Line period. the coefficient for converting from Mbps to bps. 1000000000000*/
+    /* 2. Determine the minimum Video Line period. the coefficient for converting from Mbps to bps.1000000000000*/
     info->lineMinTime = (uint64_t)info->htotal * 1000000000000 / info->maxPixelClk;
     info->lineMaxTime = (uint64_t)info->htotal * 1000000000000 / info->minPixelClk;
 
@@ -91,7 +91,8 @@ static void HdmiDfmBaseInfoInit(struct HdmiDfmInfo *info, const struct HdmiDfmPa
     info->minFrlCharRate = info->minBitRate / 18;
     info->maxFrlCharRate = info->maxBitRate / 18;
 
-    /* 5. Determine the Total FRL Characters per line Period.  */
+    /* 5. Determine the Total FRL Characters per line Period. the coefficient for converting from Mbps to bps.
+    1000000000000*/
     info->minFrlCharsPerLine = (uint32_t)(info->lineMinTime * info->minFrlCharRate * param->laneNum / 1000000000000);
     info->maxFrlCharsPerLine = (uint32_t)(info->lineMaxTime * info->maxFrlCharRate * param->laneNum / 1000000000000);
 
diff --git a/framework/tools/hdi-gen/util/options.cpp b/framework/tools/hdi-gen/util/options.cpp
index 2e7e42657a47dd4f5934455a61f755120406f358..d1479f700c24483d9db08f5eea5b9aad693a2a63 100644
--- a/framework/tools/hdi-gen/util/options.cpp
+++ b/framework/tools/hdi-gen/util/options.cpp
@@ -86,7 +86,7 @@ bool Options::Parse(int argc, char *argv[])
                 ret = AddPackagePath(optarg);
                 break;
             case 'o':
-                outPutFile = optarg;
+                outPutFile = CheckOutPutFile(optarg);
                 break;
             default:
                 doShowUsage = true;
@@ -175,6 +175,21 @@ void Options::AddSources(const std::string &sourceFile)
     doCompile = true;
 }
 
+std::string Options::CheckOutPutFile(const std::string &sourceFile)
+{
+    std::string realPath = File::AdapterRealPath(sourceFile);
+    if (realPath.empty()) {
+        Logger::E(TAG, "invalid idl file path:%s", sourceFile.c_str());
+        return "";
+    }
+
+    if (!File::VerifyRealPath(realPath)) {
+        Logger::E(TAG, "verify path failed, path:%s", realPath.c_str());
+        return "";
+    }
+    return realPath;
+}
+
 void Options::AddSourcesByDir(const std::string &dir)
 {
     std::set<std::string> files = File::FindFiles(dir);
diff --git a/framework/tools/hdi-gen/util/options.h b/framework/tools/hdi-gen/util/options.h
index 8ba364deb629fd031b0ebb67e7f76ee42539cfde..1eb393e8632b85265e83faaf45e086fffad63e16 100644
--- a/framework/tools/hdi-gen/util/options.h
+++ b/framework/tools/hdi-gen/util/options.h
@@ -160,6 +160,8 @@ private:
 
     void AddSources(const std::string &sourceFile);
 
+    std::string CheckOutPutFile(const std::string &sourceFile);
+
     void AddSourcesByDir(const std::string &dir);
 
     void SetOutDir(const std::string &dir);