diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index a7363bc66c11..e9e79d181f0e 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -236,7 +236,6 @@ struct eg20t_port {
 	void				*rx_buf_virt;
 	dma_addr_t			rx_buf_dma;
 
-	struct dentry	*debugfs;
 #define IRQ_NAME_SIZE 17
 	char				irq_name[IRQ_NAME_SIZE];
 
@@ -1735,9 +1734,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
 	int fifosize;
 	int port_type;
 	struct pch_uart_driver_data *board;
-#ifdef CONFIG_DEBUG_FS
-	char name[32];	/* for debugfs file name */
-#endif
+	char name[32];
 
 	board = &drv_dat[id->driver_data];
 	port_type = board->port_type;
@@ -1813,11 +1810,9 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
 	if (ret < 0)
 		goto init_port_hal_free;
 
-#ifdef CONFIG_DEBUG_FS
-	snprintf(name, sizeof(name), "uart%d_regs", board->line_no);
-	priv->debugfs = debugfs_create_file(name, S_IFREG | S_IRUGO,
-				NULL, priv, &port_regs_ops);
-#endif
+	snprintf(name, sizeof(name), "uart%d_regs", priv->port.line);
+	debugfs_create_file(name, S_IFREG | S_IRUGO, NULL, priv,
+			    &port_regs_ops);
 
 	return priv;
 
@@ -1835,10 +1830,10 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
 
 static void pch_uart_exit_port(struct eg20t_port *priv)
 {
+	char name[32];
 
-#ifdef CONFIG_DEBUG_FS
-	debugfs_remove(priv->debugfs);
-#endif
+	snprintf(name, sizeof(name), "uart%d_regs", priv->port.line);
+	debugfs_remove(debugfs_lookup(name, NULL));
 	uart_remove_one_port(&pch_uart_driver, &priv->port);
 	free_page((unsigned long)priv->rxbuf.buf);
 }