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tty: serial: samsung: remove variable 'ufstat' set but not used

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Fixes gcc '-Wunused-but-set-variable' warning:

drivers/tty/serial/samsung_tty.c: In function s3c24xx_serial_rx_chars_dma:
drivers/tty/serial/samsung_tty.c:549:24: warning: variable ufstat set but not used [-Wunused-but-set-variable]

Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Link: https://lore.kernel.org/r/1574424258-138975-1-git-send-email-chenwandun@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chen Wandun 2019-11-22 20:04:18 +08:00 committed by Greg Kroah-Hartman
parent e83c6587c4
commit 98aee0c944
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/samsung_tty.c
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@ -546,7 +546,7 @@ static void s3c24xx_serial_rx_drain_fifo(struct s3c24xx_uart_port *ourport);
static irqreturn_t s3c24xx_serial_rx_chars_dma(void *dev_id)
{
unsigned int utrstat, ufstat, received;
unsigned int utrstat, received;
struct s3c24xx_uart_port *ourport = dev_id;
struct uart_port *port = &ourport->port;
struct s3c24xx_uart_dma *dma = ourport->dma;
@ -556,7 +556,7 @@ static irqreturn_t s3c24xx_serial_rx_chars_dma(void *dev_id)
struct dma_tx_state state;
utrstat = rd_regl(port, S3C2410_UTRSTAT);
ufstat = rd_regl(port, S3C2410_UFSTAT);
rd_regl(port, S3C2410_UFSTAT);
spin_lock_irqsave(&port->lock, flags);