diff options
Diffstat (limited to 'drivers/tty/serial/mfd.c')
| -rw-r--r-- | drivers/tty/serial/mfd.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c index 2c01344dc33..5f4765a7a5c 100644 --- a/drivers/tty/serial/mfd.c +++ b/drivers/tty/serial/mfd.c @@ -387,12 +387,9 @@ void hsu_dma_rx(struct uart_hsu_port *up, u32 int_sts) struct hsu_dma_buffer *dbuf = &up->rxbuf; struct hsu_dma_chan *chan = up->rxc; struct uart_port *port = &up->port; - struct tty_struct *tty = port->state->port.tty; + struct tty_port *tport = &port->state->port; int count; - if (!tty) - return; - /* * First need to know how many is already transferred, * then check if its a timeout DMA irq, and return @@ -423,7 +420,7 @@ void hsu_dma_rx(struct uart_hsu_port *up, u32 int_sts) * explicitly set tail to 0. So head will * always be greater than tail. */ - tty_insert_flip_string(tty, dbuf->buf, count); + tty_insert_flip_string(tport, dbuf->buf, count); port->icount.rx += count; dma_sync_single_for_device(up->port.dev, dbuf->dma_addr, @@ -437,7 +434,7 @@ void hsu_dma_rx(struct uart_hsu_port *up, u32 int_sts) | (0x1 << 16) | (0x1 << 24) /* timeout bit, see HSU Errata 1 */ ); - tty_flip_buffer_push(tty); + tty_flip_buffer_push(tport); chan_writel(chan, HSU_CH_CR, 0x3); @@ -460,13 +457,9 @@ static void serial_hsu_stop_rx(struct uart_port *port) static inline void receive_chars(struct uart_hsu_port *up, int *status) { - struct tty_struct *tty = up->port.state->port.tty; unsigned int ch, flag; unsigned int max_count = 256; - if (!tty) - return; - do { ch = serial_in(up, UART_RX); flag = TTY_NORMAL; @@ -522,7 +515,7 @@ static inline void receive_chars(struct uart_hsu_port *up, int *status) ignore_char: *status = serial_in(up, UART_LSR); } while ((*status & UART_LSR_DR) && max_count--); - tty_flip_buffer_push(tty); + tty_flip_buffer_push(&up->port.state->port); } static void transmit_chars(struct uart_hsu_port *up) |