diff --git a/common/src/daudio_latency_test.cpp b/common/src/daudio_latency_test.cpp
index 8a29b7e488aeb73c749dfe353d2aa5db8cfb0791..32154f71d8b852fcd8b652d391f0a12b02dfb868 100644
--- a/common/src/daudio_latency_test.cpp
+++ b/common/src/daudio_latency_test.cpp
@@ -98,7 +98,7 @@ int64_t DAudioLatencyTest::RecordBeepTime(const uint8_t *base, const int32_t &si
 int32_t DAudioLatencyTest::ComputeLatency()
 {
     DHLOGD("Compute latency time.");
-    int32_t playSize = playBeepTime_.size();
+    int32_t playSize = static_cast<int32_t>(playBeepTime_.size());
     if (playSize == 0 || playBeepTime_.size() != captureBeepTime_.size()) {
         DHLOGE("Record num is not equal <%d, %d>", playSize, captureBeepTime_.size());
         return -1;
diff --git a/services/audiotransport/audiochannel/audioctrlchannel/src/audio_ctrl_channel.cpp b/services/audiotransport/audiochannel/audioctrlchannel/src/audio_ctrl_channel.cpp
index 42b447226143385f348410e062eabd42ec226f04..501576c6d93f6268b425a53a5dc68d28514c11e4 100644
--- a/services/audiotransport/audiochannel/audioctrlchannel/src/audio_ctrl_channel.cpp
+++ b/services/audiotransport/audiochannel/audioctrlchannel/src/audio_ctrl_channel.cpp
@@ -233,6 +233,7 @@ void AudioCtrlChannel::OnBytesReceived(int32_t sessionId, const void *data, uint
     json jParam = json::parse(message, nullptr, false);
     if (from_audioEventJson(jParam, audioEvent) != DH_SUCCESS) {
         DHLOGE("Get audioEvent from json failed.");
+        free(buf);
         return;
     }
     free(buf);