diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/wm_adsp.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 19f05933de54..fd85a8cc7234 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -451,6 +451,7 @@ static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol, struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; struct wm_adsp *dsp = snd_soc_codec_get_drvdata(codec); + int ret = 0; if (ucontrol->value.integer.value[0] == dsp[e->shift_l].fw) return 0; @@ -458,12 +459,16 @@ static int wm_adsp_fw_put(struct snd_kcontrol *kcontrol, if (ucontrol->value.integer.value[0] >= WM_ADSP_NUM_FW) return -EINVAL; + mutex_lock(&dsp[e->shift_l].pwr_lock); + if (dsp[e->shift_l].running) - return -EBUSY; + ret = -EBUSY; + else + dsp[e->shift_l].fw = ucontrol->value.integer.value[0]; - dsp[e->shift_l].fw = ucontrol->value.integer.value[0]; + mutex_unlock(&dsp[e->shift_l].pwr_lock); - return 0; + return ret; } static const struct soc_enum wm_adsp_fw_enum[] = { |