linux-next/sleep.h at a62e8f1978f49e52f87a711ff6711b323d4b12ff - linux-next - ClassFun

renegade-project/linux-next

mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 05:34:00 +08:00

Shaohua Li 9090589d87 ACPI: convert acpi_device_lock spinlock to mutex

Convert acpi_device_lock to a mutex to avoid
a potential race upon access to /proc/acpi/wakeup

Delete the lock entirely in wakeup.c
since it is not necessary (and can not sleep)

Found-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

2009-04-07 00:02:40 -04:00

11 lines

324 B

C

Raw Blame History

 extern u8 sleep_states[];
 extern int acpi_suspend (u32 state);
 extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
 extern void acpi_enable_wakeup_device(u8 sleep_state);
 extern void acpi_disable_wakeup_device(u8 sleep_state);
 extern struct list_head acpi_wakeup_device_list;
 extern struct mutex acpi_device_lock;