diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
index ec468d5719b1..04ea3ec7f64f 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
@@ -77,8 +77,7 @@ static int snd_bcm2835_ctl_get(struct snd_kcontrol *kcontrol,
 {
 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
 
-	if (mutex_lock_interruptible(&chip->audio_mutex))
-		return -EINTR;
+	mutex_lock(&chip->audio_mutex);
 
 	BUG_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK));
 
@@ -99,8 +98,7 @@ static int snd_bcm2835_ctl_put(struct snd_kcontrol *kcontrol,
 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
 	int changed = 0;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex))
-		return -EINTR;
+	mutex_lock(&chip->audio_mutex);
 
 	if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) {
 		audio_info("Volume change attempted.. volume = %d new_volume = %d\n", chip->volume, (int)ucontrol->value.integer.value[0]);
@@ -187,8 +185,7 @@ static int snd_bcm2835_spdif_default_get(struct snd_kcontrol *kcontrol,
 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
 	int i;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex))
-		return -EINTR;
+	mutex_lock(&chip->audio_mutex);
 
 	for (i = 0; i < 4; i++)
 		ucontrol->value.iec958.status[i] =
@@ -205,8 +202,7 @@ static int snd_bcm2835_spdif_default_put(struct snd_kcontrol *kcontrol,
 	unsigned int val = 0;
 	int i, change;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex))
-		return -EINTR;
+	mutex_lock(&chip->audio_mutex);
 
 	for (i = 0; i < 4; i++)
 		val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
@@ -251,8 +247,7 @@ static int snd_bcm2835_spdif_stream_get(struct snd_kcontrol *kcontrol,
 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
 	int i;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex))
-		return -EINTR;
+	mutex_lock(&chip->audio_mutex);
 
 	for (i = 0; i < 4; i++)
 		ucontrol->value.iec958.status[i] =
@@ -269,8 +264,7 @@ static int snd_bcm2835_spdif_stream_put(struct snd_kcontrol *kcontrol,
 	unsigned int val = 0;
 	int i, change;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex))
-		return -EINTR;
+	mutex_lock(&chip->audio_mutex);
 
 	for (i = 0; i < 4; i++)
 		val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
index 8359cf881bef..f2d8b17d0cfe 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
@@ -99,10 +99,7 @@ static int snd_bcm2835_playback_open_generic(
 	int idx;
 	int err;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
-		audio_error("Interrupted whilst waiting for lock\n");
-		return -EINTR;
-	}
+	mutex_lock(&chip->audio_mutex);
 	audio_info("Alsa open (%d)\n", substream->number);
 	idx = substream->number;
 
@@ -194,10 +191,7 @@ static int snd_bcm2835_playback_close(struct snd_pcm_substream *substream)
 	struct bcm2835_alsa_stream *alsa_stream;
 
 	chip = snd_pcm_substream_chip(substream);
-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
-		audio_error("Interrupted whilst waiting for lock\n");
-		return -EINTR;
-	}
+	mutex_lock(&chip->audio_mutex);
 	runtime = substream->runtime;
 	alsa_stream = runtime->private_data;
 
@@ -274,8 +268,7 @@ static int snd_bcm2835_pcm_prepare(struct snd_pcm_substream *substream)
 	int channels;
 	int err;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex))
-		return -EINTR;
+	mutex_lock(&chip->audio_mutex);
 
 	/* notify the vchiq that it should enter spdif passthrough mode by
 	 * setting channels=0 (see
@@ -449,14 +442,9 @@ int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels)
 	struct snd_pcm *pcm;
 	int err;
 
-	mutex_init(&chip->audio_mutex);
-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
-		audio_error("Interrupted whilst waiting for lock\n");
-		return -EINTR;
-	}
 	err = snd_pcm_new(chip->card, "bcm2835 ALSA", 0, numchannels, 0, &pcm);
 	if (err < 0)
-		goto out;
+		return err;
 	pcm->private_data = chip;
 	strcpy(pcm->name, "bcm2835 ALSA");
 	chip->pcm = pcm;
@@ -474,9 +462,6 @@ int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels)
 					      snd_bcm2835_playback_hw.buffer_bytes_max,
 					      snd_bcm2835_playback_hw.buffer_bytes_max);
 
-out:
-	mutex_unlock(&chip->audio_mutex);
-
 	return 0;
 }
 
@@ -485,13 +470,9 @@ int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip)
 	struct snd_pcm *pcm;
 	int err;
 
-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
-		audio_error("Interrupted whilst waiting for lock\n");
-		return -EINTR;
-	}
 	err = snd_pcm_new(chip->card, "bcm2835 ALSA", 1, 1, 0, &pcm);
 	if (err < 0)
-		goto out;
+		return err;
 
 	pcm->private_data = chip;
 	strcpy(pcm->name, "bcm2835 IEC958/HDMI");
@@ -504,8 +485,6 @@ int snd_bcm2835_new_spdif_pcm(struct bcm2835_chip *chip)
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
 		snd_dma_continuous_data(GFP_KERNEL),
 		snd_bcm2835_playback_spdif_hw.buffer_bytes_max, snd_bcm2835_playback_spdif_hw.buffer_bytes_max);
-out:
-	mutex_unlock(&chip->audio_mutex);
 
 	return 0;
 }
@@ -518,8 +497,6 @@ int snd_bcm2835_new_simple_pcm(struct bcm2835_chip *chip,
 	struct snd_pcm *pcm;
 	int err;
 
-	mutex_init(&chip->audio_mutex);
-
 	err = snd_pcm_new(chip->card, name, 0, numchannels,
 			  0, &pcm);
 	if (err)
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
index 868e2d6aaf1b..bec361aff4fe 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
@@ -319,11 +319,7 @@ static int vc_vchi_audio_deinit(struct bcm2835_audio_instance *instance)
 	}
 
 	LOG_DBG(" .. about to lock (%d)\n", instance->num_connections);
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
-			instance->num_connections);
-		return -EINTR;
-	}
+	mutex_lock(&instance->vchi_mutex);
 
 	/* Close all VCHI service connections */
 	for (i = 0; i < instance->num_connections; i++) {
@@ -434,11 +430,7 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream)
 	instance = alsa_stream->instance;
 	LOG_DBG(" instance (%p)\n", instance);
 
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", instance->num_connections);
-		ret = -EINTR;
-		goto free_wq;
-	}
+	mutex_lock(&instance->vchi_mutex);
 	vchi_service_use(instance->vchi_handle[0]);
 
 	m.type = VC_AUDIO_MSG_TYPE_OPEN;
@@ -479,11 +471,7 @@ static int bcm2835_audio_set_ctls_chan(struct bcm2835_alsa_stream *alsa_stream,
 	LOG_INFO(" Setting ALSA dest(%d), volume(%d)\n",
 		 chip->dest, chip->volume);
 
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
-			instance->num_connections);
-		return -EINTR;
-	}
+	mutex_lock(&instance->vchi_mutex);
 	vchi_service_use(instance->vchi_handle[0]);
 
 	instance->result = -1;
@@ -569,10 +557,7 @@ int bcm2835_audio_set_params(struct bcm2835_alsa_stream *alsa_stream,
 		return -EINVAL;
 	}
 
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", instance->num_connections);
-		return -EINTR;
-	}
+	mutex_lock(&instance->vchi_mutex);
 	vchi_service_use(instance->vchi_handle[0]);
 
 	instance->result = -1;
@@ -629,11 +614,7 @@ static int bcm2835_audio_start_worker(struct bcm2835_alsa_stream *alsa_stream)
 	int status;
 	int ret;
 
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
-			instance->num_connections);
-		return -EINTR;
-	}
+	mutex_lock(&instance->vchi_mutex);
 	vchi_service_use(instance->vchi_handle[0]);
 
 	m.type = VC_AUDIO_MSG_TYPE_START;
@@ -665,11 +646,7 @@ static int bcm2835_audio_stop_worker(struct bcm2835_alsa_stream *alsa_stream)
 	int status;
 	int ret;
 
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
-			instance->num_connections);
-		return -EINTR;
-	}
+	mutex_lock(&instance->vchi_mutex);
 	vchi_service_use(instance->vchi_handle[0]);
 
 	m.type = VC_AUDIO_MSG_TYPE_STOP;
@@ -704,11 +681,7 @@ int bcm2835_audio_close(struct bcm2835_alsa_stream *alsa_stream)
 
 	my_workqueue_quit(alsa_stream);
 
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
-			instance->num_connections);
-		return -EINTR;
-	}
+	mutex_lock(&instance->vchi_mutex);
 	vchi_service_use(instance->vchi_handle[0]);
 
 	m.type = VC_AUDIO_MSG_TYPE_CLOSE;
@@ -761,11 +734,7 @@ static int bcm2835_audio_write_worker(struct bcm2835_alsa_stream *alsa_stream,
 
 	LOG_INFO(" Writing %d bytes from %p\n", count, src);
 
-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
-			instance->num_connections);
-		return -EINTR;
-	}
+	mutex_lock(&instance->vchi_mutex);
 	vchi_service_use(instance->vchi_handle[0]);
 
 	if (instance->peer_version == 0 &&
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
index da0fa34501fa..fa04f6bc9858 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
@@ -149,6 +149,7 @@ static int snd_bcm2835_create(struct snd_card *card,
 		return -ENOMEM;
 
 	chip->card = card;
+	mutex_init(&chip->audio_mutex);
 
 	chip->vchi_ctx = devres_find(card->dev->parent,
 				     bcm2835_devm_free_vchi_ctx, NULL, NULL);