The variable pcm can be never NULL since it was rewritten with
list_for_each_entry().
Suggested-by: Markus Osterhoff <linux-kernel@k-raum.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
                        struct snd_pcm_chmap *chmap;
                        const struct snd_pcm_chmap_elem *elem;
 
-                       if (!pcm || !pcm->pcm || pcm->own_chmap ||
-                           !hinfo->substreams)
+                       if (!pcm->pcm || pcm->own_chmap || !hinfo->substreams)
                                continue;
                        elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
                        err = snd_pcm_add_chmap_ctls(pcm->pcm, str, elem,