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Diffstat (limited to 'drivers/char/tty_io.c')
-rw-r--r--drivers/char/tty_io.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index a88b94a82b14..8b2a59969868 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2961,12 +2961,14 @@ static struct class *tty_class;
2961 * This field is optional, if there is no known struct device for this 2961 * This field is optional, if there is no known struct device for this
2962 * tty device it can be set to NULL safely. 2962 * tty device it can be set to NULL safely.
2963 * 2963 *
2964 * Returns a pointer to the class device (or ERR_PTR(-EFOO) on error).
2965 *
2964 * This call is required to be made to register an individual tty device if 2966 * This call is required to be made to register an individual tty device if
2965 * the tty driver's flags have the TTY_DRIVER_NO_DEVFS bit set. If that 2967 * the tty driver's flags have the TTY_DRIVER_NO_DEVFS bit set. If that
2966 * bit is not set, this function should not be called. 2968 * bit is not set, this function should not be called.
2967 */ 2969 */
2968void tty_register_device(struct tty_driver *driver, unsigned index, 2970struct class_device *tty_register_device(struct tty_driver *driver,
2969 struct device *device) 2971 unsigned index, struct device *device)
2970{ 2972{
2971 char name[64]; 2973 char name[64];
2972 dev_t dev = MKDEV(driver->major, driver->minor_start) + index; 2974 dev_t dev = MKDEV(driver->major, driver->minor_start) + index;
@@ -2974,7 +2976,7 @@ void tty_register_device(struct tty_driver *driver, unsigned index,
2974 if (index >= driver->num) { 2976 if (index >= driver->num) {
2975 printk(KERN_ERR "Attempt to register invalid tty line number " 2977 printk(KERN_ERR "Attempt to register invalid tty line number "
2976 " (%d).\n", index); 2978 " (%d).\n", index);
2977 return; 2979 return ERR_PTR(-EINVAL);
2978 } 2980 }
2979 2981
2980 devfs_mk_cdev(dev, S_IFCHR | S_IRUSR | S_IWUSR, 2982 devfs_mk_cdev(dev, S_IFCHR | S_IRUSR | S_IWUSR,
@@ -2984,7 +2986,8 @@ void tty_register_device(struct tty_driver *driver, unsigned index,
2984 pty_line_name(driver, index, name); 2986 pty_line_name(driver, index, name);
2985 else 2987 else
2986 tty_line_name(driver, index, name); 2988 tty_line_name(driver, index, name);
2987 class_device_create(tty_class, NULL, dev, device, "%s", name); 2989
2990 return class_device_create(tty_class, NULL, dev, device, "%s", name);
2988} 2991}
2989 2992
2990/** 2993/**