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ASoC: fixes to caching implementations

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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>
This commit is contained in:
Ian Molton
2009-01-17 17:44:23 +00:00
committed by Mark Brown
parent 28796eaf80
commit 91432e976f
9 changed files with 17 additions and 16 deletions
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4
sound/soc/codecs/wm8753.c
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@@ -97,7 +97,7 @@ static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec,
unsigned int reg)
{
u16 *cache = codec->reg_cache;
if (reg < 1 || reg > (ARRAY_SIZE(wm8753_reg) + 1))
if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1))
return -1;
return cache[reg - 1];
}
@@ -109,7 +109,7 @@ static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
u16 *cache = codec->reg_cache;
if (reg < 1 || reg > 0x3f)
if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1))
return;
cache[reg - 1] = value;
}