diff options
Diffstat (limited to 'drivers/char/isicom.c')
| -rw-r--r-- | drivers/char/isicom.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c index be2e8f9a27c3..c1ab303455cf 100644 --- a/drivers/char/isicom.c +++ b/drivers/char/isicom.c @@ -130,6 +130,7 @@ #include <linux/timer.h> #include <linux/delay.h> #include <linux/ioport.h> +#include <linux/slab.h> #include <linux/uaccess.h> #include <linux/io.h> @@ -878,8 +879,8 @@ static int isicom_open(struct tty_struct *tty, struct file *filp) if (tport == NULL) return -ENODEV; port = container_of(tport, struct isi_port, port); - card = &isi_card[BOARD(tty->index)]; + tty->driver_data = port; return tty_port_open(tport, tty, filp); } @@ -935,7 +936,12 @@ static void isicom_shutdown(struct tty_port *port) static void isicom_close(struct tty_struct *tty, struct file *filp) { struct isi_port *ip = tty->driver_data; - struct tty_port *port = &ip->port; + struct tty_port *port; + + if (ip == NULL) + return; + + port = &ip->port; if (isicom_paranoia_check(ip, tty->name, "isicom_close")) return; tty_port_close(port, tty, filp); |