diff options
Diffstat (limited to 'drivers/char/misc.c')
| -rw-r--r-- | drivers/char/misc.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/char/misc.c b/drivers/char/misc.c index a5e0db9d766..62c99fa59e2 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -168,7 +168,6 @@ static const struct file_operations misc_fops = { .open = misc_open, }; - /** * misc_register - register a miscellaneous device * @misc: device structure @@ -217,8 +216,8 @@ int misc_register(struct miscdevice * misc) misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7); dev = MKDEV(MISC_MAJOR, misc->minor); - misc->this_device = device_create(misc_class, misc->parent, dev, NULL, - "%s", misc->name); + misc->this_device = device_create(misc_class, misc->parent, dev, + misc, "%s", misc->name); if (IS_ERR(misc->this_device)) { err = PTR_ERR(misc->this_device); goto out; @@ -264,6 +263,15 @@ int misc_deregister(struct miscdevice *misc) EXPORT_SYMBOL(misc_register); EXPORT_SYMBOL(misc_deregister); +static char *misc_nodename(struct device *dev) +{ + struct miscdevice *c = dev_get_drvdata(dev); + + if (c->devnode) + return kstrdup(c->devnode, GFP_KERNEL); + return NULL; +} + static int __init misc_init(void) { int err; @@ -279,6 +287,7 @@ static int __init misc_init(void) err = -EIO; if (register_chrdev(MISC_MAJOR,"misc",&misc_fops)) goto fail_printk; + misc_class->nodename = misc_nodename; return 0; fail_printk: |