diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/tty_port.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 8d9886b06037..5cd3cd932293 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -16,6 +16,7 @@ #include <linux/bitops.h> #include <linux/delay.h> #include <linux/module.h> +#include <linux/serdev.h> static int tty_port_default_receive_buf(struct tty_port *port, const unsigned char *p, @@ -128,7 +129,15 @@ struct device *tty_port_register_device_attr(struct tty_port *port, struct device *device, void *drvdata, const struct attribute_group **attr_grp) { + struct device *dev; + tty_port_link_device(port, driver, index); + + dev = serdev_tty_port_register(port, device, driver, index); + if (PTR_ERR(dev) != -ENODEV) + /* Skip creating cdev if we registered a serdev device */ + return dev; + return tty_register_device_attr(driver, index, device, drvdata, attr_grp); } @@ -180,6 +189,9 @@ static void tty_port_destructor(struct kref *kref) /* check if last port ref was dropped before tty release */ if (WARN_ON(port->itty)) return; + + serdev_tty_port_unregister(port); + if (port->xmit_buf) free_page((unsigned long)port->xmit_buf); tty_port_destroy(port); |