Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / sound / core / rawmidi.c

diff --git a/kernel/sound/core/rawmidi.c b/kernel/sound/core/rawmidi.c
index 795437b..b450a27 100644 (file)
--- a/kernel/sound/core/rawmidi.c
+++ b/kernel/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) {