1 files changed, 2 insertions, 0 deletions

diff --git a/sound/firewire/bebob/bebob_midi.c b/sound/firewire/bebob/bebob_midi.c
index f7db1f7bce86..f903271e93d0 100644
--- a/sound/firewire/bebob/bebob_midi.c
+++ b/sound/firewire/bebob/bebob_midi.c
@@ -22,6 +22,8 @@ static int midi_open(struct snd_rawmidi_substream *substream)
         if (err >= 0) {
                 ++bebob->substreams_counter;
                 err = snd_bebob_stream_start_duplex(bebob);
+                if (err < 0)
+                        --bebob->substreams_counter;
         }
         mutex_unlock(&bebob->mutex);
         if (err < 0)