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Commit cfd29aa0 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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serial: tegra: fix tty-kref leak 



Fix potential tty-kref leak in stop_rx path.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Tested-by: default avatarStephen Warren <swarren@nvidia.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 272b98c6

drivers/tty/serial/serial-tegra.c

+3 −1
Original line number Diff line number Diff line
@@ -732,7 +732,7 @@ static irqreturn_t tegra_uart_isr(int irq, void *data) 
static void tegra_uart_stop_rx(struct uart_port *u)

{

	struct tegra_uart_port *tup = to_tegra_uport(u);

	struct tty_struct *tty = tty_port_tty_get(&tup->uport.state->port);

	struct tty_struct *tty;

	struct tty_port *port = &u->state->port;

	struct dma_tx_state state;

	unsigned long ier;
@@ -744,6 +744,8 @@ static void tegra_uart_stop_rx(struct uart_port *u) 
	if (!tup->rx_in_progress)

		return;



	tty = tty_port_tty_get(&tup->uport.state->port);



	tegra_uart_wait_sym_time(tup, 1); /* wait a character interval */



	ier = tup->ier_shadow;