int err;
class = class_create(owner, name);
- if (!class) {
- err = -ENOMEM;
+ if (IS_ERR(class)) {
+ err = PTR_ERR(class);
goto err_out;
}
MKDEV(DRM_MAJOR, head->minor),
&(head->dev->pdev)->dev,
"card%d", head->minor);
- if (!class_dev) {
- err = -ENOMEM;
+ if (IS_ERR(class_dev)) {
+ err = PTR_ERR(class_dev);
goto err_out;
}