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| author | Johan Hovold <jhovold@gmail.com> | 2013-09-10 12:50:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-17 19:05:47 +0200 |
| commit | cfd29aa0e81b791985e8428e6507e80e074e6730 (patch) | |
| tree | 865ba3ca6cb117d0e86f8e2ac13e038b2cf2e725 | |
| parent | Linux 3.12-rc1 (diff) | |
| download | linux-cfd29aa0e81b791985e8428e6507e80e074e6730.tar.xz linux-cfd29aa0e81b791985e8428e6507e80e074e6730.zip | |
serial: tegra: fix tty-kref leak
Fix potential tty-kref leak in stop_rx path.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/serial-tegra.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c index d0d972f7e43e..0489a2bdcdf9 100644 --- a/drivers/tty/serial/serial-tegra.c +++ b/drivers/tty/serial/serial-tegra.c @@ -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; |