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-rw-r--r--sound/soc/codecs/nau8825.c29
1 files changed, 21 insertions, 8 deletions
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 20d2f1578b87..2e59a85e360b 100644
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -225,19 +225,26 @@ static const unsigned short logtable[256] = {
* Acquires the semaphore without jiffies. If no more tasks are allowed
* to acquire the semaphore, calling this function will put the task to
* sleep until the semaphore is released.
- * It returns if the semaphore was acquired.
+ * If the semaphore is not released within the specified number of jiffies,
+ * this function returns -ETIME.
+ * If the sleep is interrupted by a signal, this function will return -EINTR.
+ * It returns 0 if the semaphore was acquired successfully.
*/
-static void nau8825_sema_acquire(struct nau8825 *nau8825, long timeout)
+static int nau8825_sema_acquire(struct nau8825 *nau8825, long timeout)
{
int ret;
- if (timeout)
+ if (timeout) {
ret = down_timeout(&nau8825->xtalk_sem, timeout);
- else
+ if (ret < 0)
+ dev_warn(nau8825->dev, "Acquire semaphone timeout\n");
+ } else {
ret = down_interruptible(&nau8825->xtalk_sem);
+ if (ret < 0)
+ dev_warn(nau8825->dev, "Acquire semaphone fail\n");
+ }
- if (ret < 0)
- dev_warn(nau8825->dev, "Acquire semaphone fail\n");
+ return ret;
}
/**
@@ -1596,8 +1603,11 @@ static irqreturn_t nau8825_interrupt(int irq, void *data)
* cess and restore changes if process
* is ongoing when ejection.
*/
+ int ret;
nau8825->xtalk_protect = true;
- nau8825_sema_acquire(nau8825, 0);
+ ret = nau8825_sema_acquire(nau8825, 0);
+ if (ret < 0)
+ nau8825->xtalk_protect = false;
}
/* Startup cross talk detection process */
nau8825->xtalk_state = NAU8825_XTALK_PREPARE;
@@ -2223,11 +2233,14 @@ static int __maybe_unused nau8825_suspend(struct snd_soc_codec *codec)
static int __maybe_unused nau8825_resume(struct snd_soc_codec *codec)
{
struct nau8825 *nau8825 = snd_soc_codec_get_drvdata(codec);
+ int ret;
regcache_cache_only(nau8825->regmap, false);
regcache_sync(nau8825->regmap);
nau8825->xtalk_protect = true;
- nau8825_sema_acquire(nau8825, 0);
+ ret = nau8825_sema_acquire(nau8825, 0);
+ if (ret < 0)
+ nau8825->xtalk_protect = false;
enable_irq(nau8825->irq);
return 0;