From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold , Stephen Warren Subject: [ 19/52] serial: tegra: fix tty-kref leak Date: Wed, 2 Oct 2013 21:05:37 -0700 Message-Id: <20131003040523.496519452@linuxfoundation.org> In-Reply-To: <20131003040522.190209641@linuxfoundation.org> References: <20131003040522.190209641@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold commit cfd29aa0e81b791985e8428e6507e80e074e6730 upstream. Fix potential tty-kref leak in stop_rx path. Signed-off-by: Johan Hovold Tested-by: Stephen Warren Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/serial-tegra.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/tty/serial/serial-tegra.c +++ b/drivers/tty/serial/serial-tegra.c @@ -726,7 +726,7 @@ static irqreturn_t tegra_uart_isr(int ir 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; @@ -738,6 +738,8 @@ static void tegra_uart_stop_rx(struct ua 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;