- spin_lock_irq(&proc_inum_lock);
- error = ida_get_new(&proc_inum_ida, &i);
- spin_unlock_irq(&proc_inum_lock);
- if (error == -EAGAIN)
- goto retry;
- else if (error)
- return error;
-
- if (i > UINT_MAX - PROC_DYNAMIC_FIRST) {
- spin_lock_irq(&proc_inum_lock);
- ida_remove(&proc_inum_ida, i);
- spin_unlock_irq(&proc_inum_lock);
- return -ENOSPC;
- }
- *inum = PROC_DYNAMIC_FIRST + i;