1 files changed, 3 insertions, 1 deletions

diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index 795437b10082..b450a27588c8 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -1633,11 +1633,13 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
                 return -EBUSY;
         }
         list_add_tail(&rmidi->list, &snd_rawmidi_devices);
+        mutex_unlock(&register_mutex);
         err = snd_register_device(SNDRV_DEVICE_TYPE_RAWMIDI,
                                   rmidi->card, rmidi->device,
                                   &snd_rawmidi_f_ops, rmidi, &rmidi->dev);
         if (err < 0) {
                 rmidi_err(rmidi, "unable to register\n");
+                mutex_lock(&register_mutex);
                 list_del(&rmidi->list);
                 mutex_unlock(&register_mutex);
                 return err;
@@ -1645,6 +1647,7 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
         if (rmidi->ops && rmidi->ops->dev_register &&
             (err = rmidi->ops->dev_register(rmidi)) < 0) {
                 snd_unregister_device(&rmidi->dev);
+                mutex_lock(&register_mutex);
                 list_del(&rmidi->list);
                 mutex_unlock(&register_mutex);
                 return err;
@@ -1677,7 +1680,6 @@ static int snd_rawmidi_dev_register(struct snd_device *device)
                 }
         }
 #endif /* CONFIG_SND_OSSEMUL */
-        mutex_unlock(&register_mutex);
         sprintf(name, "midi%d", rmidi->device);
         entry = snd_info_create_card_entry(rmidi->card, name, rmidi->card->proc_root);
         if (entry) {