diff options
Diffstat (limited to 'sound/soc/sof/ipc.c')
| -rw-r--r-- | sound/soc/sof/ipc.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c index 0034e7a34a1d..53593df95155 100644 --- a/sound/soc/sof/ipc.c +++ b/sound/soc/sof/ipc.c @@ -744,9 +744,31 @@ int snd_sof_ipc_set_get_comp_data(struct snd_sof_control *scontrol, struct sof_ipc_fw_ready *ready = &sdev->fw_ready; struct sof_ipc_fw_version *v = &ready->version; struct sof_ipc_ctrl_data_params sparams; + struct snd_sof_widget *swidget; + bool widget_found = false; size_t send_bytes; int err; + list_for_each_entry(swidget, &sdev->widget_list, list) { + if (swidget->comp_id == scontrol->comp_id) { + widget_found = true; + break; + } + } + + if (!widget_found) { + dev_err(sdev->dev, "error: can't find widget with id %d\n", scontrol->comp_id); + return -EINVAL; + } + + /* + * Volatile controls should always be part of static pipelines and the widget use_count + * would always be > 0 in this case. For the others, just return the cached value if the + * widget is not set up. + */ + if (!swidget->use_count) + return 0; + /* read or write firmware volume */ if (scontrol->readback_offset != 0) { /* write/read value header via mmaped region */ |