ASoC: fixes to caching implementations

This patch takes fixes a number of bugs in the caching code used by
several ASoC codec drivers. Mostly off-by-one fixes.

Signed-off-by: Ian Molton <ian@mnementh.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index defa310bc7d9..f90dc52e975d 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -47,7 +47,7 @@ static inline unsigned int wm8728_read_reg_cache(struct snd_soc_codec *codec,
         unsigned int reg)
 {
         u16 *cache = codec->reg_cache;
-        BUG_ON(reg > ARRAY_SIZE(wm8728_reg_defaults));
+        BUG_ON(reg >= ARRAY_SIZE(wm8728_reg_defaults));
         return cache[reg];
 }
 
@@ -55,7 +55,7 @@ static inline void wm8728_write_reg_cache(struct snd_soc_codec *codec,
         u16 reg, unsigned int value)
 {
         u16 *cache = codec->reg_cache;
-        BUG_ON(reg > ARRAY_SIZE(wm8728_reg_defaults));
+        BUG_ON(reg >= ARRAY_SIZE(wm8728_reg_defaults));
         cache[reg] = value;
 }