Hi,
Mark, the changes requested are implemented below. There are two
patchsets, one for wm9705 and one for the other codec issues I found.
also available at:
git://git.mnementh.co.uk/linux-2.6-im.git asoc-pu
From 8e89f1f1a94bc697d1ce1c07ab8426d372b0d6fe Mon Sep 17 00:00:00 2001
From: Ian Molton <ian@xxxxxxxxxxxxxx>
Date: Fri, 16 Jan 2009 15:37:22 +0000
Subject: [PATCH] ASoC: codec: wm9705 misc cleanup
This patch fixes an off-by-one error in the wm9705 reg_cache
implementation and
replaces a kzalloc/copy with kmemdup().
Signed-off-by: Ian Molton <ian@xxxxxxxxxxxxxx>
---
sound/soc/codecs/wm9705.c | 11 ++++-------
1 files changed, 4 insertions(+), 7 deletions(-)
diff --git a/sound/soc/codecs/wm9705.c b/sound/soc/codecs/wm9705.c
index c6b7dc2..cb26b6a 100644
--- a/sound/soc/codecs/wm9705.c
+++ b/sound/soc/codecs/wm9705.c
@@ -221,7 +221,7 @@ static unsigned int ac97_read(struct snd_soc_codec
*codec, unsigned int reg)
default:
reg = reg >> 1;
- if (reg > (ARRAY_SIZE(wm9705_reg)))
+ if (reg >= (ARRAY_SIZE(wm9705_reg)))
return -EIO;
return cache[reg];
@@ -235,7 +235,7 @@ static int ac97_write(struct snd_soc_codec *codec,
unsigned int reg,
soc_ac97_ops.write(codec->ac97, reg, val);
reg = reg >> 1;
- if (reg <= (ARRAY_SIZE(wm9705_reg)))
+ if (reg < (ARRAY_SIZE(wm9705_reg)))
cache[reg] = val;
return 0;
@@ -327,15 +327,12 @@ static int wm9705_soc_probe(struct platform_device
*pdev)
codec = socdev->codec;
mutex_init(&codec->mutex);
- codec->reg_cache =
- kzalloc(sizeof(u16) * ARRAY_SIZE(wm9705_reg), GFP_KERNEL);
+ codec->reg_cache = kmemdup(wm9705_reg, sizeof(wm9705_reg), GFP_KERNEL);
if (codec->reg_cache == NULL) {
ret = -ENOMEM;
goto cache_err;
}
- memcpy(codec->reg_cache, wm9705_reg,
- sizeof(u16) * ARRAY_SIZE(wm9705_reg));
- codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(wm9705_reg);
+ codec->reg_cache_size = sizeof(wm9705_reg);
codec->reg_cache_step = 2;
codec->name = "WM9705";
--
1.5.6.5
From 7ff27c9c1f7a7b7c86d3138060b1b406ad5dd6af Mon Sep 17 00:00:00 2001
From: Ian Molton <ian@xxxxxxxxxxxxxx>
Date: Fri, 16 Jan 2009 15:03:19 +0000
Subject: [PATCH] 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@xxxxxxxxxxxxxx>
---
sound/soc/codecs/ac97.c | 2 --
sound/soc/codecs/ad1980.c | 4 ++--
sound/soc/codecs/twl4030.c | 3 +++
sound/soc/codecs/wm8580.c | 4 ++--
sound/soc/codecs/wm8728.c | 4 ++--
sound/soc/codecs/wm8753.c | 4 ++--
sound/soc/codecs/wm8990.c | 4 ++--
sound/soc/codecs/wm9712.c | 4 ++--
sound/soc/codecs/wm9713.c | 4 ++--
9 files changed, 17 insertions(+), 16 deletions(-)
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index fb53e65..89d4127 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -123,7 +123,6 @@ bus_err:
snd_soc_free_pcms(socdev);
err:
- kfree(socdev->codec->reg_cache);
kfree(socdev->codec);
socdev->codec = NULL;
return ret;
@@ -138,7 +137,6 @@ static int ac97_soc_remove(struct platform_device *pdev)
return 0;
snd_soc_free_pcms(socdev);
- kfree(socdev->codec->reg_cache);
kfree(socdev->codec);
return 0;
diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c
index c3c5d0e..faf3587 100644
--- a/sound/soc/codecs/ad1980.c
+++ b/sound/soc/codecs/ad1980.c
@@ -109,7 +109,7 @@ static unsigned int ac97_read(struct snd_soc_codec
*codec,
default:
reg = reg >> 1;
- if (reg >= (ARRAY_SIZE(ad1980_reg)))
+ if (reg >= ARRAY_SIZE(ad1980_reg))
return -EINVAL;
return cache[reg];
@@ -123,7 +123,7 @@ static int ac97_write(struct snd_soc_codec *codec,
unsigned int reg,
soc_ac97_ops.write(codec->ac97, reg, val);
reg = reg >> 1;
- if (reg < (ARRAY_SIZE(ad1980_reg)))
+ if (reg < ARRAY_SIZE(ad1980_reg))
cache[reg] = val;
return 0;
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index ddc9f37..f530c1e 100644
--- 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];
}
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index 9b75a37..3faf0e7 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -200,7 +200,7 @@ static inline unsigned int
wm8580_read_reg_cache(struct snd_soc_codec *codec,
unsigned int reg)
{
u16 *cache = codec->reg_cache;
- BUG_ON(reg > ARRAY_SIZE(wm8580_reg));
+ BUG_ON(reg >= ARRAY_SIZE(wm8580_reg));
return cache[reg];
}
@@ -223,7 +223,7 @@ static int wm8580_write(struct snd_soc_codec *codec,
unsigned int reg,
{
u8 data[2];
- BUG_ON(reg > ARRAY_SIZE(wm8580_reg));
+ BUG_ON(reg >= ARRAY_SIZE(wm8580_reg));
/* Registers are 9 bits wide */
value &= 0x1ff;
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index defa310..f90dc52 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;
}
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 7283178..5a1c1fc 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -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;
}
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 6b27786..f93c095 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -116,7 +116,7 @@ static inline unsigned int
wm8990_read_reg_cache(struct snd_soc_codec *codec,
unsigned int reg)
{
u16 *cache = codec->reg_cache;
- BUG_ON(reg > (ARRAY_SIZE(wm8990_reg)) - 1);
+ BUG_ON(reg >= ARRAY_SIZE(wm8990_reg));
return cache[reg];
}
@@ -129,7 +129,7 @@ static inline void wm8990_write_reg_cache(struct
snd_soc_codec *codec,
u16 *cache = codec->reg_cache;
/* Reset register and reserved registers are uncached */
- if (reg == 0 || reg > ARRAY_SIZE(wm8990_reg) - 1)
+ if (reg == 0 || reg >= ARRAY_SIZE(wm8990_reg))
return;
cache[reg] = value;
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 1b0ace0..4dc90d6 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -452,7 +452,7 @@ static unsigned int ac97_read(struct snd_soc_codec
*codec,
else {
reg = reg >> 1;
- if (reg > (ARRAY_SIZE(wm9712_reg)))
+ if (reg >= (ARRAY_SIZE(wm9712_reg)))
return -EIO;
return cache[reg];
@@ -466,7 +466,7 @@ static int ac97_write(struct snd_soc_codec *codec,
unsigned int reg,
soc_ac97_ops.write(codec->ac97, reg, val);
reg = reg >> 1;
- if (reg <= (ARRAY_SIZE(wm9712_reg)))
+ if (reg < (ARRAY_SIZE(wm9712_reg)))
cache[reg] = val;
return 0;
diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index a456226..d8ddca9 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -621,7 +621,7 @@ static unsigned int ac97_read(struct snd_soc_codec
*codec,
else {
reg = reg >> 1;
- if (reg > (ARRAY_SIZE(wm9713_reg)))
+ if (reg >= (ARRAY_SIZE(wm9713_reg)))
return -EIO;
return cache[reg];
@@ -635,7 +635,7 @@ static int ac97_write(struct snd_soc_codec *codec,
unsigned int reg,
if (reg < 0x7c)
soc_ac97_ops.write(codec->ac97, reg, val);
reg = reg >> 1;
- if (reg <= (ARRAY_SIZE(wm9713_reg)))
+ if (reg < (ARRAY_SIZE(wm9713_reg)))
cache[reg] = val;
return 0;
--
1.5.6.5
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