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authorJiri Slaby <jslaby@suse.cz>2013-03-07 13:12:30 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-18 16:24:29 -0700
commitaa27a094e2c2e0cc59914e56113b860f524f4479 (patch)
treeb3cfef8d8023741107e3d3bed934f2bd4d8bf189 /drivers/mmc
parente4408ce3c23f8451eff7a2954694598fb8fce833 (diff)
downloadlinux-aa27a094e2c2e0cc59914e56113b860f524f4479.tar.gz
TTY: add tty_port_tty_hangup helper
It allows for cleaning up on a considerable amount of places. They did port_get, hangup, kref_put. Now the only thing needed is to call tty_port_tty_hangup which does exactly that. And they can also decide whether to consider CLOCAL or completely ignore that. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/card/sdio_uart.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c
index c931dfe6a59..f093cea0d06 100644
--- a/drivers/mmc/card/sdio_uart.c
+++ b/drivers/mmc/card/sdio_uart.c
@@ -134,7 +134,6 @@ static void sdio_uart_port_put(struct sdio_uart_port *port)
static void sdio_uart_port_remove(struct sdio_uart_port *port)
{
struct sdio_func *func;
- struct tty_struct *tty;
BUG_ON(sdio_uart_table[port->index] != port);
@@ -155,12 +154,8 @@ static void sdio_uart_port_remove(struct sdio_uart_port *port)
sdio_claim_host(func);
port->func = NULL;
mutex_unlock(&port->func_lock);
- tty = tty_port_tty_get(&port->port);
/* tty_hangup is async so is this safe as is ?? */
- if (tty) {
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ tty_port_tty_hangup(&port->port, false);
mutex_unlock(&port->port.mutex);
sdio_release_irq(func);
sdio_disable_func(func);
@@ -492,11 +487,7 @@ static void sdio_uart_check_modem_status(struct sdio_uart_port *port)
wake_up_interruptible(&port->port.open_wait);
else {
/* DCD drop - hang up if tty attached */
- tty = tty_port_tty_get(&port->port);
- if (tty) {
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ tty_port_tty_hangup(&port->port, false);
}
}
if (status & UART_MSR_DCTS) {