Merge remote-tracking branch 'asoc/topic/core' into asoc-next

sound/soc/soc-pcm.c

@@ -1097,8 +1097,9 @@ static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,
 			stream ? "<-" : "->", be->dai_link->name);
 
 #ifdef CONFIG_DEBUG_FS
-	dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644,
-			fe->debugfs_dpcm_root, &dpcm->state);
+	if (fe->debugfs_dpcm_root)
+		dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644,
+				fe->debugfs_dpcm_root, &dpcm->state);
 #endif
 	return 1;
 }
@@ -2803,10 +2804,13 @@ static const struct file_operations dpcm_state_fops = {
 	.llseek = default_llseek,
 };
 
-int soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd)
+void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd)
 {
 	if (!rtd->dai_link)
-		return 0;
+		return;
+
+	if (!rtd->card->debugfs_card_root)
+		return;
 
 	rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name,
 			rtd->card->debugfs_card_root);
@@ -2814,13 +2818,11 @@ int soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd)
 		dev_dbg(rtd->dev,
 			 "ASoC: Failed to create dpcm debugfs directory %s\n",
 			 rtd->dai_link->name);
-		return -EINVAL;
+		return;
 	}
 
 	rtd->debugfs_dpcm_state = debugfs_create_file("state", 0444,
 						rtd->debugfs_dpcm_root,
 						rtd, &dpcm_state_fops);
-
-	return 0;
 }
 #endif