From 79b58c63bf721d301292f0cff4255e4c4d9887fe Mon Sep 17 00:00:00 2001
From: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Date: Mon, 4 Nov 2013 12:03:44 +0000
Subject: ASoC: wm_adsp: Interpret ADSP memory region lengths as 32 bit words

commit c01422a4a184a183b03fb3046af88d61828f6d56 upstream.

Pad the ADSP word (3 bytes) to 4 bytes in the kernel and calculate
lengths based on padded ADSP words instead of treating them as bytes

Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index b38f350..60b6b59 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1062,6 +1062,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp1_alg[i + 1].dm);
 				region->len -= be32_to_cpu(adsp1_alg[i].dm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
@@ -1079,6 +1080,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp1_alg[i + 1].zm);
 				region->len -= be32_to_cpu(adsp1_alg[i].zm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
@@ -1108,6 +1110,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp2_alg[i + 1].xm);
 				region->len -= be32_to_cpu(adsp2_alg[i].xm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
@@ -1125,6 +1128,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp2_alg[i + 1].ym);
 				region->len -= be32_to_cpu(adsp2_alg[i].ym);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
@@ -1142,6 +1146,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp2_alg[i + 1].zm);
 				region->len -= be32_to_cpu(adsp2_alg[i].zm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
-- 
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