diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index c3dc1c04a5df6f39966b3ca4a9c9874c001035ec..b076d8110785fa3d8deeb521a3841b6f15b4da69 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -417,7 +417,7 @@ static void sahara_aes_done_task(unsigned long data)
 	dev->req->base.complete(&dev->req->base, dev->error);
 }
 
-void sahara_watchdog(unsigned long data)
+static void sahara_watchdog(unsigned long data)
 {
 	struct sahara_dev *dev = (struct sahara_dev *)data;
 	unsigned int err = sahara_read(dev, SAHARA_REG_ERRSTATUS);