From fd137e2bba53b7207cbae6a1312e89ef3ae55624 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 6 Jun 2011 11:26:15 +0100
Subject: [PATCH] ASoC: Check for NULL register bank in snd_soc_get_cache_val()
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
---
sound/soc/soc-cache.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index 06b7b81a16016..c005ceb70c9d1 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -466,6 +466,9 @@ static bool snd_soc_set_cache_val(void *base, unsigned int idx,
static unsigned int snd_soc_get_cache_val(const void *base, unsigned int idx,
unsigned int word_size)
{
+ if (!base)
+ return -1;
+
switch (word_size) {
case 1: {
const u8 *cache = base;