linux-next/sleep.h at 4328e3e5ef1ae3427a4f6863aa65916a68ec2dd9 - linux-next - ClassFun

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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

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 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;