diff --git a/[refs] b/[refs]
index 8512a29b7f1b..603fde2d57ad 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b20d2aeb0ad322cbe7fd9120acae6118231b17a3
+refs/heads/master: 7daef60721e03809c7e5f8aa8491df4190f6b56f
diff --git a/trunk/drivers/acpi/bus.c b/trunk/drivers/acpi/bus.c
index b2977695e120..7b77ee146a80 100644
--- a/trunk/drivers/acpi/bus.c
+++ b/trunk/drivers/acpi/bus.c
@@ -25,6 +25,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/sched.h>
 #include <linux/pm.h>
@@ -738,7 +739,10 @@ static int __init acpi_init(void)
 		return -ENODEV;
 	}
 
-	firmware_register(&acpi_subsys);
+	result = firmware_register(&acpi_subsys);
+	if (result < 0)
+		printk(KERN_WARNING "%s: firmware_register error: %d\n",
+			__FUNCTION__, result);
 
 	result = acpi_bus_init();