1 files changed, 10 insertions, 0 deletions
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index a57e548..61afe99 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -559,6 +559,12 @@ void MediaPlayerService::removeClient(wp<Client> client)
     mClients.remove(client);
 }
 
+bool MediaPlayerService::hasClient(wp<Client> client)
+{
+    Mutex::Autolock lock(mLock);
+    return mClients.indexOf(client) != NAME_NOT_FOUND;
+}
+
 MediaPlayerService::Client::Client(
         const sp<MediaPlayerService>& service, pid_t pid,
         int32_t connId, const sp<IMediaPlayerClient>& client,
@@ -1055,6 +1061,10 @@ status_t MediaPlayerService::Client::setNextPlayer(const sp<IMediaPlayer>& playe
     ALOGV("setNextPlayer");
     Mutex::Autolock l(mLock);
     sp<Client> c = static_cast<Client*>(player.get());
+    if (c != NULL && !mService->hasClient(c)) {
+      return BAD_VALUE;
+    }
+
     mNextClient = c;
 
     if (c != NULL) {