diff options
Diffstat (limited to 'sound/firewire/oxfw/oxfw.c')
| -rw-r--r-- | sound/firewire/oxfw/oxfw.c | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c index fb6df3fc018e..1f1e3236efb8 100644 --- a/sound/firewire/oxfw/oxfw.c +++ b/sound/firewire/oxfw/oxfw.c @@ -118,7 +118,8 @@ static void oxfw_card_free(struct snd_card *card) { struct snd_oxfw *oxfw = card->private_data; - snd_oxfw_stream_destroy_duplex(oxfw); + if (oxfw->has_output || oxfw->has_input) + snd_oxfw_stream_destroy_duplex(oxfw); } static int detect_quirks(struct snd_oxfw *oxfw) @@ -206,23 +207,25 @@ static void do_registration(struct work_struct *work) if (err < 0) goto error; - err = snd_oxfw_stream_init_duplex(oxfw); - if (err < 0) - goto error; + if (oxfw->has_output || oxfw->has_input) { + err = snd_oxfw_stream_init_duplex(oxfw); + if (err < 0) + goto error; - err = snd_oxfw_create_pcm(oxfw); - if (err < 0) - goto error; + err = snd_oxfw_create_pcm(oxfw); + if (err < 0) + goto error; - snd_oxfw_proc_init(oxfw); + snd_oxfw_proc_init(oxfw); - err = snd_oxfw_create_midi(oxfw); - if (err < 0) - goto error; + err = snd_oxfw_create_midi(oxfw); + if (err < 0) + goto error; - err = snd_oxfw_create_hwdep(oxfw); - if (err < 0) - goto error; + err = snd_oxfw_create_hwdep(oxfw); + if (err < 0) + goto error; + } err = snd_card_register(oxfw->card); if (err < 0) @@ -274,9 +277,11 @@ static void oxfw_bus_reset(struct fw_unit *unit) fcp_bus_reset(oxfw->unit); if (oxfw->registered) { - mutex_lock(&oxfw->mutex); - snd_oxfw_stream_update_duplex(oxfw); - mutex_unlock(&oxfw->mutex); + if (oxfw->has_output || oxfw->has_input) { + mutex_lock(&oxfw->mutex); + snd_oxfw_stream_update_duplex(oxfw); + mutex_unlock(&oxfw->mutex); + } if (oxfw->entry->vendor_id == OUI_STANTON) snd_oxfw_scs1x_update(oxfw); |