[PATCH -next] kmsg_dump.h: fix build when CONFIG_PRINTK is disabled

[Randy Dunlap <randy.dunlap@xxxxxxxxxx>]

From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>

Fix <linux/kmsg_dump.h> when CONFIG_PRINTK is not enabled:

include/linux/kmsg_dump.h:56: error: 'EINVAL' undeclared (first use in this function)
include/linux/kmsg_dump.h:61: error: 'EINVAL' undeclared (first use in this function)

Looks like previous commit:
commit 595dd3d8bf953254d8d2f30f99c54fe09c470040
Author: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Date:   Tue Dec 1 10:52:02 2009 -0800

    kmsg_dump: fix build for CONFIG_PRINTK=n

uses EINVAL without having the needed header file(s),
but I'm sure that I build tested that patch also.  oh well.

Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
---
 include/linux/kmsg_dump.h |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20110524.orig/include/linux/kmsg_dump.h
+++ linux-next-20110524/include/linux/kmsg_dump.h
@@ -12,6 +12,7 @@
 #ifndef _LINUX_KMSG_DUMP_H
 #define _LINUX_KMSG_DUMP_H
 
+#include <linux/errno.h>
 #include <linux/list.h>
 
 enum kmsg_dump_reason {
--
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