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ACPI / ACPICA: Initialize the global lock spinlock as appropriate

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Commit 9cd0314 (ACPI / ACPICA: Fix global lock acquisition) forgot to
initialize the spinlock it added.  Fix that.

Reported-and-tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rafael J. Wysocki 2011-01-14 23:25:57 +01:00 committed by Linus Torvalds
parent 6ab8219649
commit 9a1fe2f27f
3 changed files with 3 additions and 2 deletions
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2
drivers/acpi/acpica/acglobal.h
View File

@ -228,8 +228,10 @@ ACPI_EXTERN u8 acpi_gbl_global_lock_present;
*/
ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */
ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
ACPI_EXTERN spinlock_t _acpi_ev_global_lock_pending_lock; /* For global lock */
#define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock
#define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock
#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock
/*****************************************************************************
*

2
drivers/acpi/acpica/evmisc.c
View File

@ -293,8 +293,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context)
*
******************************************************************************/
static u8 acpi_ev_global_lock_pending;
static spinlock_t _acpi_ev_global_lock_pending_lock;
#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock
static u32 acpi_ev_global_lock_handler(void *context)
{

1
drivers/acpi/acpica/utmutex.c
View File

@ -85,6 +85,7 @@ acpi_status acpi_ut_mutex_initialize(void)
spin_lock_init(acpi_gbl_gpe_lock);
spin_lock_init(acpi_gbl_hardware_lock);
spin_lock_init(acpi_ev_global_lock_pending_lock);
/* Mutex for _OSI support */
status = acpi_os_create_mutex(&acpi_gbl_osi_mutex);