To use this driver with 32 bit userspace applications on 64 bit kernels a compat_ioctl is needed.
Signed-off-by: Lars Poeschel <poesc...@lemonage.de> --- drivers/tty/n_gsm.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 2afe5fce68e3..0a3c9665e015 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2607,6 +2607,14 @@ static int gsmld_ioctl(struct tty_struct *tty, struct file *file, } } +#ifdef CONFIG_COMPAT +static long gsmld_compat_ioctl(struct tty_struct *tty, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return gsmld_ioctl(tty, file, cmd, arg); +} +#endif + /* * Network interface * @@ -2818,6 +2826,9 @@ static struct tty_ldisc_ops tty_ldisc_packet = { .flush_buffer = gsmld_flush_buffer, .read = gsmld_read, .write = gsmld_write, +#ifdef CONFIG_COMPAT + .compat_ioctl = gsmld_compat_ioctl, +#endif .ioctl = gsmld_ioctl, .poll = gsmld_poll, .receive_buf = gsmld_receive_buf, -- 2.13.2