diff options
| author |   Alexey Starikovskiy <alexey.y.starikovskiy@intel.com> | 2006-12-07 18:42:16 +0300 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2006-12-08 02:56:07 -0500 |
| commit | c787a8551e7fee85366962881e7a4f2fda656dfc (patch) | |
| tree | 0999285bf3e56f76b04856ba70d8c8cdda553164 /drivers/acpi | |
| parent | ACPI: ec: Query only single query at a time. (diff) | |
| download | linux-dev-c787a8551e7fee85366962881e7a4f2fda656dfc.tar.xz linux-dev-c787a8551e7fee85366962881e7a4f2fda656dfc.zip | |
ACPI: ec: Change semaphore to mutex.
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/ec.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index a85f795ab4ec..034a96372357 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -103,7 +103,7 @@ struct acpi_ec { unsigned long command_addr; unsigned long data_addr; unsigned long global_lock; - struct semaphore sem; + struct mutex lock; atomic_t query_pending; atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort */ wait_queue_head_t wait; @@ -294,7 +294,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command, if (ACPI_FAILURE(status)) return -ENODEV; } - down(&ec->sem); + mutex_lock(&ec->lock); /* Make sure GPE is enabled before doing transaction */ acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR); @@ -310,7 +310,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command, rdata, rdata_len); end: - up(&ec->sem); + mutex_unlock(&ec->lock); if (ec->global_lock) acpi_release_global_lock(glk); @@ -647,7 +647,7 @@ static int acpi_ec_add(struct acpi_device *device) ec->handle = device->handle; ec->uid = -1; - init_MUTEX(&ec->sem); + mutex_init(&ec->lock); atomic_set(&ec->query_pending, 0); if (acpi_ec_mode == EC_INTR) { atomic_set(&ec->leaving_burst, 1); @@ -830,7 +830,7 @@ acpi_fake_ecdt_callback(acpi_handle handle, { acpi_status status; - init_MUTEX(&ec_ecdt->sem); + mutex_init(&ec_ecdt->lock); if (acpi_ec_mode == EC_INTR) { init_waitqueue_head(&ec_ecdt->wait); } @@ -915,7 +915,7 @@ static int __init acpi_ec_get_real_ecdt(void) return -ENOMEM; memset(ec_ecdt, 0, sizeof(struct acpi_ec)); - init_MUTEX(&ec_ecdt->sem); + mutex_init(&ec_ecdt->lock); if (acpi_ec_mode == EC_INTR) { init_waitqueue_head(&ec_ecdt->wait); } |