[PATCH] serial: stm32: use the defined variable to simplify code

[Tang Bin]

Use the defined variable 'dev' to make the code cleaner.

Signed-off-by: Zhang Shengju <zhangshengju at cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin at cmss.chinamobile.com>
---
 drivers/tty/serial/stm32-usart.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index d4ea86e28..8f032e77b 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -1176,7 +1176,7 @@ static int stm32_usart_of_dma_rx_probe(struct stm32_port *stm32port,
 	if (uart_console(port))
 		return -ENODEV;
 
-	stm32port->rx_buf = dma_alloc_coherent(&pdev->dev, RX_BUF_L,
+	stm32port->rx_buf = dma_alloc_coherent(dev, RX_BUF_L,
 					       &stm32port->rx_dma_buf,
 					       GFP_KERNEL);
 	if (!stm32port->rx_buf)
@@ -1242,7 +1242,7 @@ static int stm32_usart_of_dma_tx_probe(struct stm32_port *stm32port,
 
 	stm32port->tx_dma_busy = false;
 
-	stm32port->tx_buf = dma_alloc_coherent(&pdev->dev, TX_BUF_L,
+	stm32port->tx_buf = dma_alloc_coherent(dev, TX_BUF_L,
 					       &stm32port->tx_dma_buf,
 					       GFP_KERNEL);
 	if (!stm32port->tx_buf)
-- 
2.20.1.windows.1