u16 nsect = 0;
char __user *buf = (char __user *)arg;
- req_task = kzalloc(tasksize, GFP_KERNEL);
- if (req_task == NULL)
- return -ENOMEM;
- if (copy_from_user(req_task, buf, tasksize)) {
- kfree(req_task);
- return -EFAULT;
- }
+ req_task = memdup_user(buf, tasksize);
+ if (IS_ERR(req_task))
+ return PTR_ERR(req_task);
taskout = req_task->out_size;
taskin = req_task->in_size;