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authorRafael J. Wysocki <rjw@sisk.pl>2011-01-14 23:25:57 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-14 15:21:42 -0800
commit9a1fe2f27f71dd275caf2be5be2fa59bd2a3f8d4 (patch)
tree4cf4dcf1119c9876db84245ea7fedb7edb429f3f /drivers/acpi
parent6ab82196492a0b6968a654a06aae923b28afef0d (diff)
downloadlinux-linaro-android-9a1fe2f27f71dd275caf2be5be2fa59bd2a3f8d4.tar.gz
ACPI / ACPICA: Initialize the global lock spinlock as appropriate
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>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/acpica/acglobal.h2
-rw-r--r--drivers/acpi/acpica/evmisc.c2
-rw-r--r--drivers/acpi/acpica/utmutex.c1
3 files changed, 3 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 9bb69c59bb1..0e4dba0d032 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -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
/*****************************************************************************
*
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index 8e31bb5a973..38bba66fcce 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -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)
{
diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index d9efa495b43..199528ff7f1 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -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);