serial: pch_uart: Fix build warning when CONFIG_DEBUG_FS=n

Add CONFIG_DEBUG_FS to 'char name' in order to fix the following
build warning, because 'char name' is used only when CONFIG_DEBUG_FS
is enabled.

drivers/tty/serial/pch_uart.c:1765:7: warning: unused variable 'name' [-Wunused-variable]

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 8fa1134e0051..0931b3fe9edf 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1762,7 +1762,9 @@ 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
 
         board = &drv_dat[id->driver_data];
         port_type = board->port_type;