From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 12 Oct 2010 02:40:14 +0000 (+0900)
Subject: ASoC: fsi: avoid un-necessary status read
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=75eda968e4db79bda95e9a5f90aead952c273839;p=linux-beck.git

ASoC: fsi: avoid un-necessary status read

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index d68dcbb8dc1f..2b3a50d48ce5 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -572,7 +572,6 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int is_play)
 {
 	struct snd_pcm_runtime *runtime;
 	struct snd_pcm_substream *substream = NULL;
-	u32 status;
 	u32 status_reg = is_play ? DOFF_ST : DIFF_ST;
 	int data_residue_num;
 	int data_num;
@@ -662,9 +661,9 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int startup, int is_play)
 	fsi->buff_offset += fsi_num2offset(data_num, ch_width);
 
 	/* check fifo status */
-	status = fsi_reg_read(fsi, status_reg);
 	if (!startup) {
 		struct snd_soc_dai *dai = fsi_get_dai(substream);
+		u32 status = fsi_reg_read(fsi, status_reg);
 
 		if (status & ERR_OVER)
 			dev_err(dai->dev, "over run\n");