* [PATCH] ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event()
@ 2017-05-15 8:33 ` Geert Uytterhoeven
0 siblings, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2017-05-15 8:33 UTC (permalink / raw)
To: Bard Liao, Oder Chiou, Liam Girdwood, Mark Brown,
Jaroslav Kysela, Takashi Iwai
Cc: Arnd Bergmann, alsa-devel, linux-kernel, Geert Uytterhoeven
With gcc 4.1.2:
sound/soc/codecs/rt5665.c: In function ‘rt5665_i2s_pin_event’:
sound/soc/codecs/rt5665.c:2610: warning: ‘mask1’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val2’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val1’ may be used uninitialized in this function
The first one is currently a false positive, as rt5665_i2s_pin_event()
is never called with snd_soc_dapm_widget.shift set to a value not
handled by the switch() statement. But that may change, so
preinitialize mask1 to fix this, like is already done for mask2.
The last two are false-positives, the compiler is just not smart enough
to notice the mask and val variables are always used together.
Fixes: 9b5d3865b3b410d2 ("ASoC: rt5665: set i2s pin share configuration")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
sound/soc/codecs/rt5665.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index 8cd22307f5b6e6ab..5e42f4ee51ba5b20 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -2607,7 +2607,7 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
- unsigned int val1, val2, mask1, mask2 = 0;
+ unsigned int val1, val2, mask1 = 0, mask2 = 0;
switch (w->shift) {
case RT5665_PWR_I2S2_1_BIT:
@@ -2635,13 +2635,17 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
}
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, val1);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, val1);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, val2);
break;
case SND_SOC_DAPM_POST_PMD:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, 0);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, 0);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, 0);
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH] ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event()
@ 2017-05-15 8:33 ` Geert Uytterhoeven
0 siblings, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2017-05-15 8:33 UTC (permalink / raw)
To: Bard Liao, Oder Chiou, Liam Girdwood, Mark Brown,
Jaroslav Kysela, Takashi Iwai
Cc: alsa-devel, Geert Uytterhoeven, linux-kernel, Arnd Bergmann
With gcc 4.1.2:
sound/soc/codecs/rt5665.c: In function ‘rt5665_i2s_pin_event’:
sound/soc/codecs/rt5665.c:2610: warning: ‘mask1’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val2’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val1’ may be used uninitialized in this function
The first one is currently a false positive, as rt5665_i2s_pin_event()
is never called with snd_soc_dapm_widget.shift set to a value not
handled by the switch() statement. But that may change, so
preinitialize mask1 to fix this, like is already done for mask2.
The last two are false-positives, the compiler is just not smart enough
to notice the mask and val variables are always used together.
Fixes: 9b5d3865b3b410d2 ("ASoC: rt5665: set i2s pin share configuration")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
sound/soc/codecs/rt5665.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index 8cd22307f5b6e6ab..5e42f4ee51ba5b20 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -2607,7 +2607,7 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
- unsigned int val1, val2, mask1, mask2 = 0;
+ unsigned int val1, val2, mask1 = 0, mask2 = 0;
switch (w->shift) {
case RT5665_PWR_I2S2_1_BIT:
@@ -2635,13 +2635,17 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
}
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, val1);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, val1);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, val2);
break;
case SND_SOC_DAPM_POST_PMD:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, 0);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, 0);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, 0);
--
2.7.4
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Applied "ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event()" to the asoc tree
2017-05-15 8:33 ` Geert Uytterhoeven
@ 2017-05-17 9:53 ` Mark Brown
-1 siblings, 0 replies; 4+ messages in thread
From: Mark Brown @ 2017-05-17 9:53 UTC (permalink / raw)
To: Geert Uytterhoeven
Cc: Mark Brown, Bard Liao, Oder Chiou, Liam Girdwood, Mark Brown,
Jaroslav Kysela, Takashi Iwai, alsa-devel, linux-kernel,
Arnd Bergmann, alsa-devel
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 3528 bytes --]
The patch
ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event()
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark
>From b98ae9ad559fea64dee5fcc8e3ba4bf936ceb5e6 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 15 May 2017 10:33:59 +0200
Subject: [PATCH] ASoC: rt5665: Fix uninitialized warning in
rt5665_i2s_pin_event()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
With gcc 4.1.2:
sound/soc/codecs/rt5665.c: In function ‘rt5665_i2s_pin_event’:
sound/soc/codecs/rt5665.c:2610: warning: ‘mask1’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val2’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val1’ may be used uninitialized in this function
The first one is currently a false positive, as rt5665_i2s_pin_event()
is never called with snd_soc_dapm_widget.shift set to a value not
handled by the switch() statement. But that may change, so
preinitialize mask1 to fix this, like is already done for mask2.
The last two are false-positives, the compiler is just not smart enough
to notice the mask and val variables are always used together.
Fixes: 9b5d3865b3b410d2 ("ASoC: rt5665: set i2s pin share configuration")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
sound/soc/codecs/rt5665.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index 26bf157ca293..c0f36d85ee4d 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -2607,7 +2607,7 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
- unsigned int val1, val2, mask1, mask2 = 0;
+ unsigned int val1, val2, mask1 = 0, mask2 = 0;
switch (w->shift) {
case RT5665_PWR_I2S2_1_BIT:
@@ -2635,13 +2635,17 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
}
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, val1);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, val1);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, val2);
break;
case SND_SOC_DAPM_POST_PMD:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, 0);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, 0);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, 0);
--
2.11.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* Applied "ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event()" to the asoc tree
@ 2017-05-17 9:53 ` Mark Brown
0 siblings, 0 replies; 4+ messages in thread
From: Mark Brown @ 2017-05-17 9:53 UTC (permalink / raw)
To: Geert Uytterhoeven; +Cc: Mark Brown, Bard Liao, Oder Chiou, Liam Girdwood
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 3528 bytes --]
The patch
ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event()
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark
>From b98ae9ad559fea64dee5fcc8e3ba4bf936ceb5e6 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 15 May 2017 10:33:59 +0200
Subject: [PATCH] ASoC: rt5665: Fix uninitialized warning in
rt5665_i2s_pin_event()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
With gcc 4.1.2:
sound/soc/codecs/rt5665.c: In function ‘rt5665_i2s_pin_event’:
sound/soc/codecs/rt5665.c:2610: warning: ‘mask1’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val2’ may be used uninitialized in this function
sound/soc/codecs/rt5665.c:2610: warning: ‘val1’ may be used uninitialized in this function
The first one is currently a false positive, as rt5665_i2s_pin_event()
is never called with snd_soc_dapm_widget.shift set to a value not
handled by the switch() statement. But that may change, so
preinitialize mask1 to fix this, like is already done for mask2.
The last two are false-positives, the compiler is just not smart enough
to notice the mask and val variables are always used together.
Fixes: 9b5d3865b3b410d2 ("ASoC: rt5665: set i2s pin share configuration")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
sound/soc/codecs/rt5665.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index 26bf157ca293..c0f36d85ee4d 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -2607,7 +2607,7 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
- unsigned int val1, val2, mask1, mask2 = 0;
+ unsigned int val1, val2, mask1 = 0, mask2 = 0;
switch (w->shift) {
case RT5665_PWR_I2S2_1_BIT:
@@ -2635,13 +2635,17 @@ static int rt5665_i2s_pin_event(struct snd_soc_dapm_widget *w,
}
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, val1);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, val1);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, val2);
break;
case SND_SOC_DAPM_POST_PMD:
- snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1, mask1, 0);
+ if (mask1)
+ snd_soc_update_bits(codec, RT5665_GPIO_CTRL_1,
+ mask1, 0);
if (mask2)
snd_soc_update_bits(codec, RT5665_GPIO_CTRL_2,
mask2, 0);
--
2.11.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-05-17 9:53 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-05-15 8:33 [PATCH] ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event() Geert Uytterhoeven
2017-05-15 8:33 ` Geert Uytterhoeven
2017-05-17 9:53 ` Applied "ASoC: rt5665: Fix uninitialized warning in rt5665_i2s_pin_event()" to the asoc tree Mark Brown
2017-05-17 9:53 ` Mark Brown
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