mutex_lock(&codec->spdif_mutex);
spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
+ /* Add sanity check to pass klockwork check.
+ * This should never happen.
+ */
+ if (WARN_ON(spdif == NULL))
+ return true;
non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
mutex_unlock(&codec->spdif_mutex);
return non_pcm;