diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index bdc03f7e8424ceda39d454413a76d637a9215418..a96ca86a7b4aff74ef6c3c11cdf8571965311870 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -415,7 +415,7 @@ EXPORT_SYMBOL_GPL(device_power_down);
  *	@dev:	Device.
  *	@state:	Power state device is entering.
  */
-int suspend_device(struct device *dev, pm_message_t state)
+static int suspend_device(struct device *dev, pm_message_t state)
 {
 	int error = 0;