Merge branch 'for-2.6.29' into for-2.6.30

[deliverable/linux.git] / sound / soc / codecs / twl4030.c

diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index ddc9f37d863fdf99de849ae8038aaf12e231d231..f530c1e6d9e814955cfd380d82b5f9c3c5a9ee93 100644 (file)
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -125,6 +125,9 @@ static inline unsigned int twl4030_read_reg_cache(struct snd_soc_codec *codec,
 {
        u8 *cache = codec->reg_cache;
 
+       if (reg >= TWL4030_CACHEREGNUM)
+               return -EIO;
+
        return cache[reg];
 }