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path: root/drivers/acpi/power.c
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Diffstat (limited to 'drivers/acpi/power.c')
-rw-r--r--drivers/acpi/power.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 67dedeed144c..792a8309d074 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -465,10 +465,12 @@ int acpi_power_transition(struct acpi_device *device, int state)
465 struct acpi_handle_list *tl = NULL; /* Target Resources */ 465 struct acpi_handle_list *tl = NULL; /* Target Resources */
466 int i = 0; 466 int i = 0;
467 467
468
469 if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3)) 468 if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
470 return -EINVAL; 469 return -EINVAL;
471 470
471 if (device->power.state == state)
472 return 0;
473
472 if ((device->power.state < ACPI_STATE_D0) 474 if ((device->power.state < ACPI_STATE_D0)
473 || (device->power.state > ACPI_STATE_D3)) 475 || (device->power.state > ACPI_STATE_D3))
474 return -ENODEV; 476 return -ENODEV;
@@ -488,10 +490,6 @@ int acpi_power_transition(struct acpi_device *device, int state)
488 goto end; 490 goto end;
489 } 491 }
490 492
491 if (device->power.state == state) {
492 goto end;
493 }
494
495 /* 493 /*
496 * Then we dereference all power resources used in the current list. 494 * Then we dereference all power resources used in the current list.
497 */ 495 */