diff options
author | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-04-02 00:08:05 -0500 |
---|---|---|
committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-04-02 00:08:05 -0500 |
commit | 95d465fd750897ab32462a6702fbfe1b122cbbc0 (patch) | |
tree | 65c38b2f11c51bb6932e44dd6c92f15b0091abfe /sound/oss/maestro.c | |
parent | 642fde17dceceb56c7ba2762733ac688666ae657 (diff) | |
parent | 683aa4012f53b2ada0f430487e05d37b0d94e90a (diff) |
Manual merge with Linus.
Conflicts:
arch/powerpc/kernel/setup-common.c
drivers/input/keyboard/hil_kbd.c
drivers/input/mouse/hil_ptr.c
Diffstat (limited to 'sound/oss/maestro.c')
-rw-r--r-- | sound/oss/maestro.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/sound/oss/maestro.c b/sound/oss/maestro.c index d4b569acf76..e647f2f8627 100644 --- a/sound/oss/maestro.c +++ b/sound/oss/maestro.c @@ -223,6 +223,8 @@ #include <linux/reboot.h> #include <linux/bitops.h> #include <linux/wait.h> +#include <linux/mutex.h> + #include <asm/current.h> #include <asm/dma.h> @@ -397,7 +399,7 @@ struct ess_state { /* this locks around the oss state in the driver */ spinlock_t lock; /* only let 1 be opening at a time */ - struct semaphore open_sem; + struct mutex open_mutex; wait_queue_head_t open_wait; mode_t open_mode; @@ -3020,26 +3022,26 @@ ess_open(struct inode *inode, struct file *file) VALIDATE_STATE(s); file->private_data = s; /* wait for device to become free */ - down(&s->open_sem); + mutex_lock(&s->open_mutex); while (s->open_mode & file->f_mode) { if (file->f_flags & O_NONBLOCK) { - up(&s->open_sem); + mutex_unlock(&s->open_mutex); return -EWOULDBLOCK; } - up(&s->open_sem); + mutex_unlock(&s->open_mutex); interruptible_sleep_on(&s->open_wait); if (signal_pending(current)) return -ERESTARTSYS; - down(&s->open_sem); + mutex_lock(&s->open_mutex); } /* under semaphore.. */ if ((s->card->dmapages==NULL) && allocate_buffers(s)) { - up(&s->open_sem); + mutex_unlock(&s->open_mutex); return -ENOMEM; } - /* we're covered by the open_sem */ + /* we're covered by the open_mutex */ if( ! s->card->dsps_open ) { maestro_power(s->card,ACPI_D0); start_bob(s); @@ -3076,7 +3078,7 @@ ess_open(struct inode *inode, struct file *file) set_fmt(s, fmtm, fmts); s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - up(&s->open_sem); + mutex_unlock(&s->open_mutex); return nonseekable_open(inode, file); } @@ -3089,7 +3091,7 @@ ess_release(struct inode *inode, struct file *file) lock_kernel(); if (file->f_mode & FMODE_WRITE) drain_dac(s, file->f_flags & O_NONBLOCK); - down(&s->open_sem); + mutex_lock(&s->open_mutex); if (file->f_mode & FMODE_WRITE) { stop_dac(s); } @@ -3098,7 +3100,7 @@ ess_release(struct inode *inode, struct file *file) } s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE); - /* we're covered by the open_sem */ + /* we're covered by the open_mutex */ M_printk("maestro: %d dsps now alive\n",s->card->dsps_open-1); if( --s->card->dsps_open <= 0) { s->card->dsps_open = 0; @@ -3106,7 +3108,7 @@ ess_release(struct inode *inode, struct file *file) free_buffers(s); maestro_power(s->card,ACPI_D2); } - up(&s->open_sem); + mutex_unlock(&s->open_mutex); wake_up(&s->open_wait); unlock_kernel(); return 0; @@ -3466,7 +3468,7 @@ maestro_probe(struct pci_dev *pcidev,const struct pci_device_id *pdid) init_waitqueue_head(&s->dma_dac.wait); init_waitqueue_head(&s->open_wait); spin_lock_init(&s->lock); - init_MUTEX(&s->open_sem); + mutex_init(&s->open_mutex); s->magic = ESS_STATE_MAGIC; s->apu[0] = 6*i; |