diff options
Diffstat (limited to 'sound/soc/codecs/wm_adsp.c')
| -rw-r--r-- | sound/soc/codecs/wm_adsp.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index d151224ffcca..bbdb72f73df1 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -899,7 +899,10 @@ static int wm_coeff_put(struct snd_kcontrol *kctl, mutex_lock(&ctl->dsp->pwr_lock); - memcpy(ctl->cache, p, ctl->len); + if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) + ret = -EPERM; + else + memcpy(ctl->cache, p, ctl->len); ctl->set = 1; if (ctl->enabled && ctl->dsp->running) @@ -926,6 +929,8 @@ static int wm_coeff_tlv_put(struct snd_kcontrol *kctl, ctl->set = 1; if (ctl->enabled && ctl->dsp->running) ret = wm_coeff_write_control(ctl, ctl->cache, size); + else if (ctl->flags & WMFW_CTL_FLAG_VOLATILE) + ret = -EPERM; } mutex_unlock(&ctl->dsp->pwr_lock); @@ -947,7 +952,7 @@ static int wm_coeff_put_acked(struct snd_kcontrol *kctl, mutex_lock(&ctl->dsp->pwr_lock); - if (ctl->enabled) + if (ctl->enabled && ctl->dsp->running) ret = wm_coeff_write_acked_control(ctl, val); else ret = -EPERM; |