The snd_pcm_suspend_all() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 
        list_for_each_entry(i2sdev, &control->list, item) {
                /* Notify Alsa */
-               if (i2sdev->sound.pcm) {
-                       /* Suspend PCM streams */
-                       snd_pcm_suspend_all(i2sdev->sound.pcm);
-               }
+               /* Suspend PCM streams */
+               snd_pcm_suspend_all(i2sdev->sound.pcm);
 
                /* Notify codecs */
                list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {