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authorIngo Molnar <mingo@elte.hu>2010-05-03 09:17:01 +0200
committerIngo Molnar <mingo@elte.hu>2010-05-03 09:17:01 +0200
commit53ba4f2fa73225113a488584df0d85d3cba52943 (patch)
treed85b984d9818abc3ccc0237eb53b710d9e96c39e /drivers/acpi/bus.c
parentlockstat: Make lockstat counting per cpu (diff)
parentLinux 2.6.34-rc6 (diff)
downloadlinux-dev-53ba4f2fa73225113a488584df0d85d3cba52943.tar.xz
linux-dev-53ba4f2fa73225113a488584df0d85d3cba52943.zip
Merge commit 'v2.6.34-rc6' into core/locking
Diffstat (limited to 'drivers/acpi/bus.c')
-rw-r--r--drivers/acpi/bus.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index a52126e46307..37132dc2da03 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -32,6 +32,7 @@
#include <linux/device.h>
#include <linux/proc_fs.h>
#include <linux/acpi.h>
+#include <linux/slab.h>
#ifdef CONFIG_X86
#include <asm/mpspec.h>
#endif
@@ -190,16 +191,16 @@ int acpi_bus_get_power(acpi_handle handle, int *state)
* Get the device's power state either directly (via _PSC) or
* indirectly (via power resources).
*/
- if (device->power.flags.explicit_get) {
+ if (device->power.flags.power_resources) {
+ result = acpi_power_get_inferred_state(device);
+ if (result)
+ return result;
+ } else if (device->power.flags.explicit_get) {
status = acpi_evaluate_integer(device->handle, "_PSC",
NULL, &psc);
if (ACPI_FAILURE(status))
return -ENODEV;
device->power.state = (int)psc;
- } else if (device->power.flags.power_resources) {
- result = acpi_power_get_inferred_state(device);
- if (result)
- return result;
}
*state = device->power.state;