diff --git a/src/audio/dcblock/dcblock.c b/src/audio/dcblock/dcblock.c
index cc5024156eaa..8e52820341ba 100644
--- a/src/audio/dcblock/dcblock.c
+++ b/src/audio/dcblock/dcblock.c
@@ -221,7 +221,6 @@ static inline void dcblock_set_frame_alignment(struct audio_stream *source,
 static void dcblock_params(struct processing_module *mod)
 {
 	struct sof_ipc_stream_params *params = mod->stream_params;
-	struct comp_buffer *sink_c, *source_c;
 	struct comp_buffer *sinkb, *sourceb;
 	struct comp_dev *dev = mod->dev;
 
@@ -231,14 +230,10 @@ static void dcblock_params(struct processing_module *mod)
 	component_set_nearest_period_frames(dev, params->rate);
 
 	sinkb = list_first_item(&dev->bsink_list, struct comp_buffer, source_list);
-	sink_c = buffer_acquire(sinkb);
-	ipc4_update_buffer_format(sink_c, &mod->priv.cfg.base_cfg.audio_fmt);
-	buffer_release(sink_c);
+	ipc4_update_buffer_format(sinkb, &mod->priv.cfg.base_cfg.audio_fmt);
 
 	sourceb = list_first_item(&dev->bsource_list, struct comp_buffer, sink_list);
-	source_c = buffer_acquire(sourceb);
-	ipc4_update_buffer_format(source_c, &mod->priv.cfg.base_cfg.audio_fmt);
-	buffer_release(source_c);
+	ipc4_update_buffer_format(sourceb, &mod->priv.cfg.base_cfg.audio_fmt);
 }
 #endif /* CONFIG_IPC_MAJOR_4 */
 
@@ -253,7 +248,6 @@ static int dcblock_prepare(struct processing_module *mod,
 {
 	struct comp_data *cd = module_get_private_data(mod);
 	struct comp_buffer *sourceb, *sinkb;
-	struct comp_buffer *source_c, *sink_c;
 	struct comp_dev *dev = mod->dev;
 
 	comp_info(dev, "dcblock_prepare()");
@@ -266,18 +260,13 @@ static int dcblock_prepare(struct processing_module *mod,
 	sourceb = list_first_item(&dev->bsource_list, struct comp_buffer, sink_list);
 	sinkb = list_first_item(&dev->bsink_list, struct comp_buffer, source_list);
 
-	source_c = buffer_acquire(sourceb);
-	sink_c = buffer_acquire(sinkb);
-
 	/* get source data format */
-	cd->source_format = audio_stream_get_frm_fmt(&source_c->stream);
+	cd->source_format = audio_stream_get_frm_fmt(&sourceb->stream);
 
 	/* get sink data format and period bytes */
-	cd->sink_format = audio_stream_get_frm_fmt(&sink_c->stream);
+	cd->sink_format = audio_stream_get_frm_fmt(&sinkb->stream);
 
-	dcblock_set_frame_alignment(&source_c->stream, &sink_c->stream);
-	buffer_release(sink_c);
-	buffer_release(source_c);
+	dcblock_set_frame_alignment(&sourceb->stream, &sinkb->stream);
 
 	dcblock_init_state(cd);
 	cd->dcblock_func = dcblock_find_func(cd->source_format);