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Subject: [PATCH] ACPI: add kernel tainting after overriding an ACPI control
	method
From: Zhang Rui <rui.zhang@intel.com>
To: Len Brown <lenb@kernel.org>
Cc: "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	Thomas Renninger <trenn@suse.de>, "Zhang, Rui" <rui.zhang@intel.com>
Date: Mon, 14 Dec 2009 11:24:18 +0800
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Index: linux-2.6/drivers/acpi/debug.c
===================================================================
--- linux-2.6.orig/drivers/acpi/debug.c
+++ linux-2.6/drivers/acpi/debug.c
@@ -239,6 +239,7 @@ static ssize_t cm_write(struct file *fil
 		kfree(buf);
 		if (ACPI_FAILURE(status))
 			return -EINVAL;
+		add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
 	}
 
 	return count;