diff --git a/drm/drmserver/DrmManager.cpp b/drm/drmserver/DrmManager.cpp
index 305bafc0f0f50..1eee5f216de51 100644
--- a/drm/drmserver/DrmManager.cpp
+++ b/drm/drmserver/DrmManager.cpp
@@ -119,7 +119,7 @@ status_t DrmManager::unloadPlugIns() {
 
 status_t DrmManager::setDrmServiceListener(
             int uniqueId, const sp<IDrmServiceListener>& drmServiceListener) {
-    Mutex::Autolock _l(mLock);
+    Mutex::Autolock _l(mListenerLock);
     if (NULL != drmServiceListener.get()) {
         mServiceListeners.add(uniqueId, drmServiceListener);
     } else {
@@ -573,7 +573,7 @@ String8 DrmManager::getSupportedPlugInIdFromPath(int uniqueId, const String8& pa
 }
 
 void DrmManager::onInfo(const DrmInfoEvent& event) {
-    Mutex::Autolock _l(mLock);
+    Mutex::Autolock _l(mListenerLock);
     for (unsigned int index = 0; index < mServiceListeners.size(); index++) {
         int uniqueId = mServiceListeners.keyAt(index);
 
diff --git a/drm/libdrmframework/DrmManagerClient.cpp b/drm/libdrmframework/DrmManagerClient.cpp
index 7b518226305a4..1d1e258d68458 100644
--- a/drm/libdrmframework/DrmManagerClient.cpp
+++ b/drm/libdrmframework/DrmManagerClient.cpp
@@ -78,7 +78,6 @@ int DrmManagerClient::checkRightsStatus(const String8& path, int action) {
 }
 
 status_t DrmManagerClient::consumeRights(DecryptHandle* decryptHandle, int action, bool reserve) {
-    Mutex::Autolock _l(mDecryptLock);
     return mDrmManagerClientImpl->consumeRights(mUniqueId, decryptHandle, action, reserve);
 }
 
@@ -131,7 +130,6 @@ status_t DrmManagerClient::closeDecryptSession(DecryptHandle* decryptHandle) {
 
 status_t DrmManagerClient::initializeDecryptUnit(
             DecryptHandle* decryptHandle, int decryptUnitId, const DrmBuffer* headerInfo) {
-    Mutex::Autolock _l(mDecryptLock);
     return mDrmManagerClientImpl->initializeDecryptUnit(
             mUniqueId, decryptHandle, decryptUnitId, headerInfo);
 }
@@ -139,19 +137,16 @@ status_t DrmManagerClient::initializeDecryptUnit(
 status_t DrmManagerClient::decrypt(
     DecryptHandle* decryptHandle, int decryptUnitId,
     const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) {
-    Mutex::Autolock _l(mDecryptLock);
     return mDrmManagerClientImpl->decrypt(
             mUniqueId, decryptHandle, decryptUnitId, encBuffer, decBuffer, IV);
 }
 
 status_t DrmManagerClient::finalizeDecryptUnit(DecryptHandle* decryptHandle, int decryptUnitId) {
-    Mutex::Autolock _l(mDecryptLock);
     return mDrmManagerClientImpl->finalizeDecryptUnit(mUniqueId, decryptHandle, decryptUnitId);
 }
 
 ssize_t DrmManagerClient::pread(
             DecryptHandle* decryptHandle, void* buffer, ssize_t numBytes, off64_t offset) {
-    Mutex::Autolock _l(mDecryptLock);
     return mDrmManagerClientImpl->pread(mUniqueId, decryptHandle, buffer, numBytes, offset);
 }
 
diff --git a/drm/libdrmframework/include/DrmManager.h b/drm/libdrmframework/include/DrmManager.h
index e05366ded9093..c7276f988a204 100644
--- a/drm/libdrmframework/include/DrmManager.h
+++ b/drm/libdrmframework/include/DrmManager.h
@@ -147,6 +147,7 @@ private:
     int mDecryptSessionId;
     int mConvertId;
     Mutex mLock;
+    Mutex mListenerLock;
     Mutex mDecryptLock;
     Mutex mConvertLock;
     TPlugInManager<IDrmEngine> mPlugInManager;
diff --git a/include/drm/DrmManagerClient.h b/include/drm/DrmManagerClient.h
index 085ebf1b0412b..12142bce1ca75 100644
--- a/include/drm/DrmManagerClient.h
+++ b/include/drm/DrmManagerClient.h
@@ -365,7 +365,6 @@ public:
 
 private:
     int mUniqueId;
-    Mutex mDecryptLock;
     DrmManagerClientImpl* mDrmManagerClientImpl;
 };