From: bui duc phuc <[email protected]>
Clean up the code using guard() for mutex & spin locks.
Merely code refactoring, and no behavior change.
Signed-off-by: bui duc phuc <[email protected]>
---
sound/soc/codecs/wm0010.c | 63 ++++++++++++++-------------------------
1 file changed, 23 insertions(+), 40 deletions(-)
diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index 2a8c61a72c17..aeca42e4caba 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -148,13 +148,11 @@ static const char *wm0010_state_to_str(enum wm0010_state state)
static void wm0010_halt(struct snd_soc_component *component)
{
struct wm0010_priv *wm0010 = snd_soc_component_get_drvdata(component);
- unsigned long flags;
enum wm0010_state state;
/* Fetch the wm0010 state */
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- state = wm0010->state;
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+ state = wm0010->state;
switch (state) {
case WM0010_POWER_OFF:
@@ -173,9 +171,8 @@ static void wm0010_halt(struct snd_soc_component *component)
break;
}
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- wm0010->state = WM0010_POWER_OFF;
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+ wm0010->state = WM0010_POWER_OFF;
}
struct wm0010_boot_xfer {
@@ -190,11 +187,9 @@ struct wm0010_boot_xfer {
static void wm0010_mark_boot_failure(struct wm0010_priv *wm0010)
{
enum wm0010_state state;
- unsigned long flags;
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- state = wm0010->state;
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+ state = wm0010->state;
dev_err(wm0010->dev, "Failed to transition from `%s' state to `%s' state\n",
wm0010_state_to_str(state), wm0010_state_to_str(state + 1));
@@ -558,7 +553,6 @@ static int wm0010_boot(struct snd_soc_component *component)
{
struct spi_device *spi = to_spi_device(component->dev);
struct wm0010_priv *wm0010 = snd_soc_component_get_drvdata(component);
- unsigned long flags;
int ret;
struct spi_message m;
struct spi_transfer t;
@@ -568,10 +562,10 @@ static int wm0010_boot(struct snd_soc_component *component)
u8 *out;
int i;
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- if (wm0010->state != WM0010_POWER_OFF)
- dev_warn(wm0010->dev, "DSP already powered up!\n");
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock) {
+ if (wm0010->state != WM0010_POWER_OFF)
+ dev_warn(wm0010->dev, "DSP already powered up!\n");
+ }
if (wm0010->sysclk > 26000000) {
dev_err(component->dev, "Max DSP clock frequency is 26MHz\n");
@@ -579,7 +573,7 @@ static int wm0010_boot(struct snd_soc_component *component)
goto err;
}
- mutex_lock(&wm0010->lock);
+ guard(mutex)(&wm0010->lock);
wm0010->pll_running = false;
dev_dbg(component->dev, "max_spi_freq: %d\n", wm0010->max_spi_freq);
@@ -589,7 +583,6 @@ static int wm0010_boot(struct snd_soc_component *component)
if (ret != 0) {
dev_err(&spi->dev, "Failed to enable core supplies: %d\n",
ret);
- mutex_unlock(&wm0010->lock);
goto err;
}
@@ -601,17 +594,15 @@ static int wm0010_boot(struct snd_soc_component *component)
/* Release reset */
gpiod_set_value_cansleep(wm0010->reset, 0);
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- wm0010->state = WM0010_OUT_OF_RESET;
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+ wm0010->state = WM0010_OUT_OF_RESET;
if (!wait_for_completion_timeout(&wm0010->boot_completion,
msecs_to_jiffies(20)))
dev_err(component->dev, "Failed to get interrupt from DSP\n");
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- wm0010->state = WM0010_BOOTROM;
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+ wm0010->state = WM0010_BOOTROM;
ret = wm0010_stage2_load(component);
if (ret)
@@ -621,9 +612,8 @@ static int wm0010_boot(struct snd_soc_component *component)
msecs_to_jiffies(20)))
dev_err(component->dev, "Failed to get interrupt from DSP loader.\n");
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- wm0010->state = WM0010_STAGE2;
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+ wm0010->state = WM0010_STAGE2;
/* Only initialise PLL if max_spi_freq initialised */
if (wm0010->max_spi_freq) {
@@ -693,11 +683,8 @@ static int wm0010_boot(struct snd_soc_component *component)
if (ret != 0)
goto abort;
- spin_lock_irqsave(&wm0010->irq_lock, flags);
- wm0010->state = WM0010_FIRMWARE;
- spin_unlock_irqrestore(&wm0010->irq_lock, flags);
-
- mutex_unlock(&wm0010->lock);
+ scoped_guard(spinlock_irqsave, &wm0010->irq_lock)
+ wm0010->state = WM0010_FIRMWARE;
return 0;
@@ -708,11 +695,9 @@ static int wm0010_boot(struct snd_soc_component *component)
abort:
/* Put the chip back into reset */
wm0010_halt(component);
- mutex_unlock(&wm0010->lock);
return ret;
err_core:
- mutex_unlock(&wm0010->lock);
regulator_bulk_disable(ARRAY_SIZE(wm0010->core_supplies),
wm0010->core_supplies);
err:
@@ -734,9 +719,8 @@ static int wm0010_set_bias_level(struct snd_soc_component *component,
break;
case SND_SOC_BIAS_STANDBY:
if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_PREPARE) {
- mutex_lock(&wm0010->lock);
- wm0010_halt(component);
- mutex_unlock(&wm0010->lock);
+ scoped_guard(mutex, &wm0010->lock)
+ wm0010_halt(component);
}
break;
case SND_SOC_BIAS_OFF:
@@ -832,9 +816,8 @@ static irqreturn_t wm0010_irq(int irq, void *data)
case WM0010_OUT_OF_RESET:
case WM0010_BOOTROM:
case WM0010_STAGE2:
- spin_lock(&wm0010->irq_lock);
- complete(&wm0010->boot_completion);
- spin_unlock(&wm0010->irq_lock);
+ scoped_guard(spinlock, &wm0010->irq_lock)
+ complete(&wm0010->boot_completion);
return IRQ_HANDLED;
default:
return IRQ_NONE;
--
2.43.0
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