diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index e3d40a8dfffbc35259f3d2342d6343da343b0521..1d9e7bd3f3778fdc970b7622be7eaecfa71ef51f 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -317,7 +317,7 @@ static inline void atmel_aes_write(struct atmel_aes_dev *dd,
 		char tmp[16];
 
 		dev_vdbg(dd->dev, "write 0x%08x into %s\n", value,
-			 atmel_aes_reg_name(offset, tmp));
+			 atmel_aes_reg_name(offset, tmp, sizeof(tmp)));
 	}
 #endif /* VERBOSE_DEBUG */