From: Len Brown <len.brown@intel.com>
Date: Fri, 8 May 2009 04:07:30 +0000 (-0400)
Subject: ACPI: power: update error message
X-Git-Tag: firefly_0821_release~14158^2^6~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ddc50b6ad634d9ce2526a777d4b7da80effdfb60;p=firefly-linux-kernel-4.4.55.git

ACPI: power: update error message

"Transitioning device [%s] to D%d" is not correct.
We print this line when we attempted to transition
the device, and it failed.

So instead, print
"Device [%s] failed to transition to D%d\n"

This can happen under two conditions:

1. acpi_power_transition() fails when trying to handle the
   _ON/_OFF for associated power resource.

2. acpi_evaluate_object() on the explicit _PS0/_PS3
   for that actual device could fail.

this change clarifies, but doesn't fix
http://bugzilla.kernel.org/show_bug.cgi?id=13243

Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e8f7b64e92da..ae862f1798dc 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -312,7 +312,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
       end:
 	if (result)
 		printk(KERN_WARNING PREFIX
-			      "Transitioning device [%s] to D%d\n",
+			      "Device [%s] failed to transition to D%d\n",
 			      device->pnp.bus_id, state);
 	else {
 		device->power.state = state;