ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)

Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 964ee5c8e..18c8e3e 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -969,7 +969,7 @@
 
 	device = kmalloc(sizeof(struct acpi_device), GFP_KERNEL);
 	if (!device) {
-		ACPI_ERROR((AE_INFO, "Memory allocation error"));
+		printk(KERN_ERR PREFIX "Memory allocation error\n");
 		return_VALUE(-ENOMEM);
 	}
 	memset(device, 0, sizeof(struct acpi_device));