From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 6 Jun 2011 10:26:15 +0000 (+0100)
Subject: ASoC: Check for NULL register bank in snd_soc_get_cache_val()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fd137e2bba53b7207cbae6a1312e89ef3ae55624;p=linux-beck.git

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>
---

diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index 06b7b81a1601..c005ceb70c9d 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;