diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index 8b4352d206b014d7bf25cfedbebc242fedc10150..a3ceef6d9632509b5d1d4cb760539af02a033efe 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -470,7 +470,7 @@ void radeon_audio_detect(struct drm_connector *connector,
 		int sink_type;
 
 		if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
-			radeon_encoder->audio = 0;
+			radeon_encoder->audio = NULL;
 			return;
 		}