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path: root/drivers/tty/mxser.c
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Diffstat (limited to 'drivers/tty/mxser.c')
-rw-r--r--drivers/tty/mxser.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 1e54e94a7ca6..ea5e61a5a173 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -856,15 +856,12 @@ static void mxser_shutdown_port(struct tty_port *port)
*/
static int mxser_open(struct tty_struct *tty, struct file *filp)
{
- struct mxser_port *info;
- int line = tty->index;
+ struct tty_port *tport = tty->port;
+ struct mxser_port *port = container_of(tport, struct mxser_port, port);
- info = &mxser_boards[line / MXSER_PORTS_PER_BOARD].ports[line % MXSER_PORTS_PER_BOARD];
- if (!info->ioaddr)
- return -ENODEV;
+ tty->driver_data = port;
- tty->driver_data = info;
- return tty_port_open(&info->port, tty, filp);
+ return tty_port_open(tport, tty, filp);
}
static void mxser_flush_buffer(struct tty_struct *tty)