diff --git a/packages/SystemUI/src/com/android/systemui/media/MediaDeviceManager.kt b/packages/SystemUI/src/com/android/systemui/media/MediaDeviceManager.kt
index 83050503a18f2..25186597e0e1e 100644
--- a/packages/SystemUI/src/com/android/systemui/media/MediaDeviceManager.kt
+++ b/packages/SystemUI/src/com/android/systemui/media/MediaDeviceManager.kt
@@ -188,24 +188,28 @@ class MediaDeviceManager @Inject constructor(
 
         @AnyThread
         fun start() = bgExecutor.execute {
-            localMediaManager.registerCallback(this)
-            localMediaManager.startScan()
-            muteAwaitConnectionManager?.startListening()
-            playbackType = controller?.playbackInfo?.playbackType ?: PLAYBACK_TYPE_UNKNOWN
-            controller?.registerCallback(this)
-            updateCurrent()
-            started = true
-            configurationController.addCallback(configListener)
+            if (!started) {
+                localMediaManager.registerCallback(this)
+                localMediaManager.startScan()
+                muteAwaitConnectionManager?.startListening()
+                playbackType = controller?.playbackInfo?.playbackType ?: PLAYBACK_TYPE_UNKNOWN
+                controller?.registerCallback(this)
+                updateCurrent()
+                started = true
+                configurationController.addCallback(configListener)
+            }
         }
 
         @AnyThread
         fun stop() = bgExecutor.execute {
-            started = false
-            controller?.unregisterCallback(this)
-            localMediaManager.stopScan()
-            localMediaManager.unregisterCallback(this)
-            muteAwaitConnectionManager?.stopListening()
-            configurationController.removeCallback(configListener)
+            if (started) {
+                started = false
+                controller?.unregisterCallback(this)
+                localMediaManager.stopScan()
+                localMediaManager.unregisterCallback(this)
+                muteAwaitConnectionManager?.stopListening()
+                configurationController.removeCallback(configListener)
+            }
         }
 
         fun dump(pw: PrintWriter) {
@@ -265,7 +269,6 @@ class MediaDeviceManager @Inject constructor(
             updateCurrent()
         }
 
-
         override fun onBroadcastStarted(reason: Int, broadcastId: Int) {
             if (DEBUG) {
                 Log.d(TAG, "onBroadcastStarted(), reason = $reason , broadcastId = $broadcastId")
@@ -279,8 +282,10 @@ class MediaDeviceManager @Inject constructor(
             }
         }
 
-        override fun onBroadcastMetadataChanged(broadcastId: Int,
-                                                metadata: BluetoothLeBroadcastMetadata) {
+        override fun onBroadcastMetadataChanged(
+            broadcastId: Int,
+            metadata: BluetoothLeBroadcastMetadata
+        ) {
             if (DEBUG) {
                 Log.d(TAG, "onBroadcastMetadataChanged(), broadcastId = $broadcastId , " +
                         "metadata = $metadata")
@@ -291,7 +296,6 @@ class MediaDeviceManager @Inject constructor(
         override fun onBroadcastStopped(reason: Int, broadcastId: Int) {
             if (DEBUG) {
                 Log.d(TAG, "onBroadcastStopped(), reason = $reason , broadcastId = $broadcastId")
-
             }
             updateCurrent()
         }