ASoC: da7210: Fencepost error in reg cache read

An index equal to the array size may not be accessed.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
index 89cea32..b9cbaeb 100644 (file)
--- a/sound/soc/codecs/da7210.c
+++ b/sound/soc/codecs/da7210.c
@@ -181,7 +181,7 @@ static const u8 da7210_reg[] = {
 static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
 {
        u8 *cache = codec->reg_cache;
-       BUG_ON(reg > ARRAY_SIZE(da7210_reg));
+       BUG_ON(reg >= ARRAY_SIZE(da7210_reg));
        return cache[reg];
 }