ASoC: Make soc_dpcm_debugfs_add() non-fatal

Failing to register the debugfs entries is not fatal and will not affect
normal operation of the sound card. Don't abort the card registration if
soc_dpcm_debugfs_add() fails.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 3f18fa7..d29c68a 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1328,15 +1328,8 @@
 
 #ifdef CONFIG_DEBUG_FS
 	/* add DPCM sysfs entries */
-	if (dai_link->dynamic) {
-		ret = soc_dpcm_debugfs_add(rtd);
-		if (ret < 0) {
-			dev_err(rtd->dev,
-				"ASoC: failed to add dpcm sysfs entries: %d\n",
-				ret);
-			return ret;
-		}
-	}
+	if (dai_link->dynamic)
+		soc_dpcm_debugfs_add(rtd);
 #endif
 
 	if (cpu_dai->driver->compress_dai) {