diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/serial-tegra.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c index cf0133ae762d..38b49f447bd7 100644 --- a/drivers/tty/serial/serial-tegra.c +++ b/drivers/tty/serial/serial-tegra.c @@ -607,9 +607,7 @@ static void tegra_uart_rx_dma_complete(void *args) tegra_uart_handle_rx_pio(tup, port); if (tty) { - spin_unlock_irqrestore(&u->lock, flags); tty_flip_buffer_push(port); - spin_lock_irqsave(&u->lock, flags); tty_kref_put(tty); } tegra_uart_start_rx_dma(tup); @@ -622,13 +620,11 @@ done: spin_unlock_irqrestore(&u->lock, flags); } -static void tegra_uart_handle_rx_dma(struct tegra_uart_port *tup, - unsigned long *flags) +static void tegra_uart_handle_rx_dma(struct tegra_uart_port *tup) { struct dma_tx_state state; struct tty_struct *tty = tty_port_tty_get(&tup->uport.state->port); struct tty_port *port = &tup->uport.state->port; - struct uart_port *u = &tup->uport; unsigned int count; /* Deactivate flow control to stop sender */ @@ -645,9 +641,7 @@ static void tegra_uart_handle_rx_dma(struct tegra_uart_port *tup, tegra_uart_handle_rx_pio(tup, port); if (tty) { - spin_unlock_irqrestore(&u->lock, *flags); tty_flip_buffer_push(port); - spin_lock_irqsave(&u->lock, *flags); tty_kref_put(tty); } tegra_uart_start_rx_dma(tup); @@ -714,7 +708,7 @@ static irqreturn_t tegra_uart_isr(int irq, void *data) iir = tegra_uart_read(tup, UART_IIR); if (iir & UART_IIR_NO_INT) { if (is_rx_int) { - tegra_uart_handle_rx_dma(tup, &flags); + tegra_uart_handle_rx_dma(tup); if (tup->rx_in_progress) { ier = tup->ier_shadow; ier |= (UART_IER_RLSI | UART_IER_RTOIE | |