[PATCH] acpi: fix acpi/video.h error and warning when PM is notenabled

[Randy Dunlap]

From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>

When CONFIG_PM is not enabled, acpi/video.h causes a build error.
Also fix a longstanding warning.

include/acpi/video.h:22: warning: 'struct acpi_device' declared inside parameter list
include/acpi/video.h:22: warning: its scope is only this definition or declaration, which is probably not what you want
include/acpi/video.h: In function 'acpi_video_get_edid':
include/acpi/video.h:24: error: 'ENODEV' undeclared (first use in this function)

Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
---
 include/acpi/video.h |    4 ++++
 1 file changed, 4 insertions(+)

--- lnx-2637-rc2.orig/include/acpi/video.h
+++ lnx-2637-rc2/include/acpi/video.h
@@ -1,6 +1,10 @@
 #ifndef __ACPI_VIDEO_H
 #define __ACPI_VIDEO_H
 
+#include <linux/errno.h>
+
+struct acpi_device;
+
 #define ACPI_VIDEO_DISPLAY_CRT  1
 #define ACPI_VIDEO_DISPLAY_TV   2
 #define ACPI_VIDEO_DISPLAY_DVI  3
--
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