diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index a680f23a04fb..e30a00c14196 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -53,7 +53,7 @@ struct snd_compr_stream;
  * Specifies whether the DAI can also support inverted clocks for the specified
  * format.
  */
-#define SND_SOC_DAIFMT_NB_NF		(1 << 8) /* normal bit clock + frame */
+#define SND_SOC_DAIFMT_NB_NF		(0 << 8) /* normal bit clock + frame */
 #define SND_SOC_DAIFMT_NB_IF		(2 << 8) /* normal BCLK + inv FRM */
 #define SND_SOC_DAIFMT_IB_NF		(3 << 8) /* invert BCLK + nor FRM */
 #define SND_SOC_DAIFMT_IB_IF		(4 << 8) /* invert BCLK + FRM */
diff --git a/include/sound/soc.h b/include/sound/soc.h
index bc56738cb109..c76d0242c2a8 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -906,8 +906,8 @@ struct snd_soc_dai_link {
 			struct snd_pcm_hw_params *params);
 
 	/* machine stream operations */
-	struct snd_soc_ops *ops;
-	struct snd_soc_compr_ops *compr_ops;
+	const struct snd_soc_ops *ops;
+	const struct snd_soc_compr_ops *compr_ops;
 };
 
 struct snd_soc_codec_conf {
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4eac22797893..7365afbc5e18 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1107,6 +1107,10 @@ static int soc_probe_codec(struct snd_soc_card *card,
 				"ASoC: failed to probe CODEC %d\n", ret);
 			goto err_probe;
 		}
+		WARN(codec->dapm.idle_bias_off &&
+			codec->dapm.bias_level != SND_SOC_BIAS_OFF,
+			"codec %s can not start from non-off bias"
+			" with idle_bias_off==1\n", codec->name);
 	}
 
 	/* If the driver didn't set I/O up try regmap */
@@ -3122,9 +3126,12 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 	if (!codec->using_regmap)
 		return -EINVAL;
 
-	data = ucontrol->value.bytes.data;
 	len = params->num_regs * codec->val_bytes;
 
+	data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
+	if (!data)
+		return -ENOMEM;
+
 	/*
 	 * If we've got a mask then we need to preserve the register
 	 * bits.  We shouldn't modify the incoming data so take a
@@ -3137,10 +3144,6 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 
 		val &= params->mask;
 
-		data = kmemdup(data, len, GFP_KERNEL);
-		if (!data)
-			return -ENOMEM;
-
 		switch (codec->val_bytes) {
 		case 1:
 			((u8 *)data)[0] &= ~params->mask;
@@ -3162,8 +3165,7 @@ int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
 	ret = regmap_raw_write(codec->control_data, params->base,
 			       data, len);
 
-	if (params->mask)
-		kfree(data);
+	kfree(data);
 
 	return ret;
 }
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d675b4ae0df6..73bb8eefa491 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1728,20 +1728,16 @@ static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
 
 	/* startup must always be called for new BEs */
 	ret = dpcm_be_dai_startup(fe, stream);
-	if (ret < 0) {
+	if (ret < 0)
 		goto disconnect;
-		return ret;
-	}
 
 	/* keep going if FE state is > open */
 	if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN)
 		return 0;
 
 	ret = dpcm_be_dai_hw_params(fe, stream);
-	if (ret < 0) {
+	if (ret < 0)
 		goto close;
-		return ret;
-	}
 
 	/* keep going if FE state is > hw_params */
 	if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS)
@@ -1749,10 +1745,8 @@ static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream)
 
 
 	ret = dpcm_be_dai_prepare(fe, stream);
-	if (ret < 0) {
+	if (ret < 0)
 		goto hw_free;
-		return ret;
-	}
 
 	/* run the stream event for each BE */
 	dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP);