1 files changed, 13 insertions, 1 deletions

diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 02dc1a664b55..537a9cb83581 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -56,7 +56,7 @@ struct amdtp_out_stream {
 
         struct snd_pcm_substream *pcm;
 
-        unsigned int packet_counter;
+        int packet_index;
         unsigned int data_block_counter;
 
         unsigned int data_block_state;
@@ -111,6 +111,18 @@ static inline void amdtp_out_stream_set_midi(struct amdtp_out_stream *s,
 }
 
 /**
+ * amdtp_out_streaming_error - check for streaming error
+ * @s: the AMDTP output stream
+ *
+ * If this function returns true, the stream's packet queue has stopped due to
+ * an asynchronous error.
+ */
+static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
+{
+        return s->packet_index < 0;
+}
+
+/**
  * amdtp_out_stream_pcm_prepare - prepare PCM device for running
  * @s: the AMDTP output stream
  *