diff --git a/drivers/firmware/stratix10-rsu.c b/drivers/firmware/stratix10-rsu.c
index 53b67b242cf0..41da07c445a6 100644
--- a/drivers/firmware/stratix10-rsu.c
+++ b/drivers/firmware/stratix10-rsu.c
@@ -478,8 +478,7 @@ static ssize_t max_retry_show(struct device *dev,
 	if (!priv)
 		return -ENODEV;
 
-	return scnprintf(buf, sizeof(priv->max_retry),
-			 "0x%08x\n", priv->max_retry);
+	return sysfs_emit(buf, "0x%08x\n", priv->max_retry);
 }
 
 static ssize_t dcmf0_show(struct device *dev,
@@ -649,7 +648,7 @@ static ssize_t spt0_address_show(struct device *dev,
 	if (priv->spt0_address == INVALID_SPT_ADDRESS)
 		return -EIO;
 
-	return scnprintf(buf, PAGE_SIZE, "0x%08lx\n", priv->spt0_address);
+	return sysfs_emit(buf, "0x%08lx\n", priv->spt0_address);
 }
 
 static ssize_t spt1_address_show(struct device *dev,
@@ -663,7 +662,7 @@ static ssize_t spt1_address_show(struct device *dev,
 	if (priv->spt1_address == INVALID_SPT_ADDRESS)
 		return -EIO;
 
-	return scnprintf(buf, PAGE_SIZE, "0x%08lx\n", priv->spt1_address);
+	return sysfs_emit(buf, "0x%08lx\n", priv->spt1_address);
 }
 
 static DEVICE_ATTR_RO(current_image);