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ACPI / PM: Prevent acpi_power_get_inferred_state() from making changes

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acpi_power_get_inferred_state() should not update
device->power.state behind the back of its caller, so make it return
the state via a pointer instead.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Rafael J. Wysocki
2010-11-25 00:05:17 +01:00
committed by Len Brown
parent 3c0eee3fe6
commit 32a00d274e
3 changed files with 7 additions and 10 deletions
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2
drivers/acpi/internal.h
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@ -41,7 +41,7 @@ static inline int acpi_debugfs_init(void) { return 0; }
int acpi_power_init(void);
int acpi_device_sleep_wake(struct acpi_device *dev,
int enable, int sleep_state, int dev_state);
int acpi_power_get_inferred_state(struct acpi_device *device);
int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
int acpi_power_transition(struct acpi_device *device, int state);
extern int acpi_power_nocheck;