return len;
}
+#ifndef is_affinity_mask_valid
+#define is_affinity_mask_valid(val) 1
+#endif
+
int no_irq_affinity;
static int irq_affinity_write_proc(struct file *file, const char __user *buffer,
unsigned long count, void *data)
if (err)
return err;
+ if (!is_affinity_mask_valid(new_value))
+ return -EINVAL;
+
/*
* Do not allow disabling IRQs completely - it's a too easy
* way to make the system unusable accidentally :-) At least
{
struct irq_desc *desc = irq_desc + irq;
struct irqaction *action;
+ unsigned long flags;
+ int ret = 1;
- for (action = desc->action ; action; action = action->next)
+ spin_lock_irqsave(&desc->lock, flags);
+ for (action = desc->action ; action; action = action->next) {
if ((action != new_action) && action->name &&
- !strcmp(new_action->name, action->name))
- return 0;
- return 1;
+ !strcmp(new_action->name, action->name)) {
+ ret = 0;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&desc->lock, flags);
+ return ret;
}
void register_handler_proc(unsigned int irq, struct irqaction *action)