diff options
Diffstat (limited to 'sound/pci/nm256/nm256.c')
| -rw-r--r-- | sound/pci/nm256/nm256.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c index 0d0ff54f0fc..3a3ba6f547b 100644 --- a/sound/pci/nm256/nm256.c +++ b/sound/pci/nm256/nm256.c @@ -32,6 +32,8 @@ #include <linux/pci.h> #include <linux/slab.h> #include <linux/moduleparam.h> +#include <linux/mutex.h> + #include <sound/core.h> #include <sound/info.h> #include <sound/control.h> @@ -235,7 +237,7 @@ struct nm256 { int irq_acks; irqreturn_t (*interrupt)(int, void *, struct pt_regs *); int badintrcount; /* counter to check bogus interrupts */ - struct semaphore irq_mutex; + struct mutex irq_mutex; struct nm256_stream streams[2]; @@ -459,32 +461,32 @@ snd_nm256_set_format(struct nm256 *chip, struct nm256_stream *s, /* acquire interrupt */ static int snd_nm256_acquire_irq(struct nm256 *chip) { - down(&chip->irq_mutex); + mutex_lock(&chip->irq_mutex); if (chip->irq < 0) { if (request_irq(chip->pci->irq, chip->interrupt, SA_INTERRUPT|SA_SHIRQ, chip->card->driver, chip)) { snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->pci->irq); - up(&chip->irq_mutex); + mutex_unlock(&chip->irq_mutex); return -EBUSY; } chip->irq = chip->pci->irq; } chip->irq_acks++; - up(&chip->irq_mutex); + mutex_unlock(&chip->irq_mutex); return 0; } /* release interrupt */ static void snd_nm256_release_irq(struct nm256 *chip) { - down(&chip->irq_mutex); + mutex_lock(&chip->irq_mutex); if (chip->irq_acks > 0) chip->irq_acks--; if (chip->irq_acks == 0 && chip->irq >= 0) { free_irq(chip->irq, chip); chip->irq = -1; } - up(&chip->irq_mutex); + mutex_unlock(&chip->irq_mutex); } /* @@ -1407,7 +1409,7 @@ snd_nm256_create(struct snd_card *card, struct pci_dev *pci, chip->use_cache = use_cache; spin_lock_init(&chip->reg_lock); chip->irq = -1; - init_MUTEX(&chip->irq_mutex); + mutex_init(&chip->irq_mutex); /* store buffer sizes in bytes */ chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = playback_bufsize * 1024; |