aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/char/misc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/misc.c')
-rw-r--r--drivers/char/misc.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index a5e0db9d7662..62c99fa59e2b 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -168,7 +168,6 @@ static const struct file_operations misc_fops = {
168 .open = misc_open, 168 .open = misc_open,
169}; 169};
170 170
171
172/** 171/**
173 * misc_register - register a miscellaneous device 172 * misc_register - register a miscellaneous device
174 * @misc: device structure 173 * @misc: device structure
@@ -217,8 +216,8 @@ int misc_register(struct miscdevice * misc)
217 misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7); 216 misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7);
218 dev = MKDEV(MISC_MAJOR, misc->minor); 217 dev = MKDEV(MISC_MAJOR, misc->minor);
219 218
220 misc->this_device = device_create(misc_class, misc->parent, dev, NULL, 219 misc->this_device = device_create(misc_class, misc->parent, dev,
221 "%s", misc->name); 220 misc, "%s", misc->name);
222 if (IS_ERR(misc->this_device)) { 221 if (IS_ERR(misc->this_device)) {
223 err = PTR_ERR(misc->this_device); 222 err = PTR_ERR(misc->this_device);
224 goto out; 223 goto out;
@@ -264,6 +263,15 @@ int misc_deregister(struct miscdevice *misc)
264EXPORT_SYMBOL(misc_register); 263EXPORT_SYMBOL(misc_register);
265EXPORT_SYMBOL(misc_deregister); 264EXPORT_SYMBOL(misc_deregister);
266 265
266static char *misc_nodename(struct device *dev)
267{
268 struct miscdevice *c = dev_get_drvdata(dev);
269
270 if (c->devnode)
271 return kstrdup(c->devnode, GFP_KERNEL);
272 return NULL;
273}
274
267static int __init misc_init(void) 275static int __init misc_init(void)
268{ 276{
269 int err; 277 int err;
@@ -279,6 +287,7 @@ static int __init misc_init(void)
279 err = -EIO; 287 err = -EIO;
280 if (register_chrdev(MISC_MAJOR,"misc",&misc_fops)) 288 if (register_chrdev(MISC_MAJOR,"misc",&misc_fops))
281 goto fail_printk; 289 goto fail_printk;
290 misc_class->nodename = misc_nodename;
282 return 0; 291 return 0;
283 292
284fail_printk: 293fail_printk: