linux-kernel - [PATCH] ACPI / PM: Fix error message in __acpi_bus_set

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Message-Id: <201205142253.57023.rjw@sisk.pl>
Date:	Mon, 14 May 2012 22:53:56 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	ACPI Devel Mailing List <linux-acpi@...r.kernel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, Len Brown <lenb@...nel.org>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: [PATCH] ACPI / PM: Fix error message in __acpi_bus_set_power()

From: Rafael J. Wysocki <rjw@...k.pl>

After recent changes of the ACPI device low-power states definitions
an error message in __acpi_bus_set_power() needs to be updated so
that it prints the correct name of the state that has been requested
(currently it will print "D3" for D3hot and "D4" for D3cold).

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 drivers/acpi/bus.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux/drivers/acpi/bus.c
===================================================================
--- linux.orig/drivers/acpi/bus.c
+++ linux/drivers/acpi/bus.c
@@ -240,7 +240,9 @@ static int __acpi_bus_set_power(struct a
 	}
 
 	if (!device->power.states[state].flags.valid) {
-		printk(KERN_WARNING PREFIX "Device does not support D%d\n", state);
+		printk(KERN_WARNING PREFIX "Device does not support D%d%s\n",
+			state == ACPI_STATE_D3_COLD ? 3 : state,
+			state == ACPI_STATE_D3_HOT ? "hot" : "");
 		return -ENODEV;
 	}
 	if (device->parent && (state < device->parent->power.state)) {
--
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