Re: [PATCH 16/26] ASoC: codecs: wm0010: Use guard() for mutex & spin locks

[Richard Fitzgerald <rf@opensource.cirrus.com>]

On 23/07/2026 5:53 am, phucduc.bui@gmail.com wrote:
> From: bui duc phuc <phucduc.bui@gmail.com>
> 
> Clean up the code using guard() for mutex & spin locks.
> Merely code refactoring, and no behavior change.
> 
> Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
> ---
>   sound/soc/codecs/wm0010.c | 28 +++++++++++-----------------
>   1 file changed, 11 insertions(+), 17 deletions(-)
> 
> diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
> index 2a8c61a72c17..58c0c601ee6c 100644
> --- a/sound/soc/codecs/wm0010.c
> +++ b/sound/soc/codecs/wm0010.c
> @@ -9,6 +9,7 @@
>    *          Scott Ling <sl@opensource.wolfsonmicro.com>
>    */
>   
> +#include <linux/cleanup.h>
>   #include <linux/module.h>
>   #include <linux/moduleparam.h>
>   #include <linux/interrupt.h>
> @@ -148,13 +149,11 @@ 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 +172,8 @@ 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 +188,9 @@ 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));
> @@ -734,9 +730,8 @@ 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 +827,8 @@ 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;
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>