ASoC: amd: acp: remove unnecessary NULL check

The list iterator in a list_for_each_entry() loop can never be NULL.
Remove the check and pull the code in a tab.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/e376a712-e0c6-446f-9e0b-c444dd795cbb@moroto.mountainSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp/acp63.c

@@ -283,18 +283,16 @@ static int __maybe_unused acp63_pcm_resume(struct device *dev)
 
 	spin_lock(&adata->acp_lock);
 	list_for_each_entry(stream, &adata->stream_list, list) {
-		if (stream) {
-			substream = stream->substream;
-			if (substream && substream->runtime) {
-				buf_in_frames = (substream->runtime->buffer_size);
-				buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
-				config_pte_for_stream(adata, stream);
-				config_acp_dma(adata, stream, buf_size);
-				if (stream->dai_id)
-					restore_acp_i2s_params(substream, adata, stream);
-				else
-					restore_acp_pdm_params(substream, adata);
-			}
+		substream = stream->substream;
+		if (substream && substream->runtime) {
+			buf_in_frames = (substream->runtime->buffer_size);
+			buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
+			config_pte_for_stream(adata, stream);
+			config_acp_dma(adata, stream, buf_size);
+			if (stream->dai_id)
+				restore_acp_i2s_params(substream, adata, stream);
+			else
+				restore_acp_pdm_params(substream, adata);
 		}
 	}
 	spin_unlock(&adata->acp_lock);