{
int err;
struct device *dev;
+
memset(&g_cdev, 0, sizeof(g_cdev));
err = alloc_chrdev_region(&g_cdev.devnum, 0, 1, "ozwpan");
if (err < 0)
- goto out3;
+ return err;
oz_dbg(ON, "Alloc dev number %d:%d\n",
MAJOR(g_cdev.devnum), MINOR(g_cdev.devnum));
cdev_init(&g_cdev.cdev, &oz_fops);
err = cdev_add(&g_cdev.cdev, g_cdev.devnum, 1);
if (err < 0) {
oz_dbg(ON, "Failed to add cdev\n");
- goto out2;
+ goto unregister;
}
g_oz_class = class_create(THIS_MODULE, "ozmo_wpan");
if (IS_ERR(g_oz_class)) {
oz_dbg(ON, "Failed to register ozmo_wpan class\n");
err = PTR_ERR(g_oz_class);
- goto out1;
+ goto delete;
}
dev = device_create(g_oz_class, NULL, g_cdev.devnum, NULL, "ozwpan");
if (IS_ERR(dev)) {
oz_dbg(ON, "Failed to create sysfs entry for cdev\n");
err = PTR_ERR(dev);
- goto out1;
+ goto delete;
}
return 0;
-out1:
+
+delete:
cdev_del(&g_cdev.cdev);
-out2:
+unregister:
unregister_chrdev_region(g_cdev.devnum, 1);
-out3:
return err;
}
/*------------------------------------------------------------------------------