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ACPI: ec: Change semaphore to mutex. 

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Starikovskiy 2006-12-07 18:42:16 +03:00 committed by Len Brown
parent 5d0c288b73
commit c787a8551e
1 changed files with 6 additions and 6 deletions
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12
drivers/acpi/ec.c
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@ -103,7 +103,7 @@ struct acpi_ec {
unsigned long command_addr; unsigned long command_addr;
unsigned long data_addr; unsigned long data_addr;
unsigned long global_lock; unsigned long global_lock;
struct semaphore sem; struct mutex lock;
atomic_t query_pending; atomic_t query_pending;
atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort */ atomic_t leaving_burst; /* 0 : No, 1 : Yes, 2: abort */
wait_queue_head_t wait; wait_queue_head_t wait;
@ -294,7 +294,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
if (ACPI_FAILURE(status)) if (ACPI_FAILURE(status))
return -ENODEV; return -ENODEV;
} }
down(&ec->sem); mutex_lock(&ec->lock);
/* Make sure GPE is enabled before doing transaction */ /* Make sure GPE is enabled before doing transaction */
acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_NOT_ISR); 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); rdata, rdata_len);
end: end:
up(&ec->sem); mutex_unlock(&ec->lock);
if (ec->global_lock) if (ec->global_lock)
acpi_release_global_lock(glk); acpi_release_global_lock(glk);
@ -647,7 +647,7 @@ static int acpi_ec_add(struct acpi_device *device)
ec->handle = device->handle; ec->handle = device->handle;
ec->uid = -1; ec->uid = -1;
init_MUTEX(&ec->sem); mutex_init(&ec->lock);
atomic_set(&ec->query_pending, 0); atomic_set(&ec->query_pending, 0);
if (acpi_ec_mode == EC_INTR) { if (acpi_ec_mode == EC_INTR) {
atomic_set(&ec->leaving_burst, 1); atomic_set(&ec->leaving_burst, 1);
@ -830,7 +830,7 @@ acpi_fake_ecdt_callback(acpi_handle handle,
{ {
acpi_status status; acpi_status status;
init_MUTEX(&ec_ecdt->sem); mutex_init(&ec_ecdt->lock);
if (acpi_ec_mode == EC_INTR) { if (acpi_ec_mode == EC_INTR) {
init_waitqueue_head(&ec_ecdt->wait); init_waitqueue_head(&ec_ecdt->wait);
} }
@ -915,7 +915,7 @@ static int __init acpi_ec_get_real_ecdt(void)
return -ENOMEM; return -ENOMEM;
memset(ec_ecdt, 0, sizeof(struct acpi_ec)); memset(ec_ecdt, 0, sizeof(struct acpi_ec));
init_MUTEX(&ec_ecdt->sem); mutex_init(&ec_ecdt->lock);
if (acpi_ec_mode == EC_INTR) { if (acpi_ec_mode == EC_INTR) {
init_waitqueue_head(&ec_ecdt->wait); init_waitqueue_head(&ec_ecdt->wait);
} }