static inline int xnintr_irq_detach(xnintr_t *intr)
{
xnintr_irq_t *shirq = &xnirqs[intr->irq];
xnintr_t *e, **p = &shirq->handlers;
int err = 0;
while ((e = *p) != NULL) {
if (e == intr) {
/* Remove the given interrupt object from the list. */
xnlock_get(&shirq->lock);
*p = e->next;
xnlock_put(&shirq->lock);
xnintr_sync_stat_references(intr);
/* Release the IRQ line if this was the last user */
if (shirq->handlers == NULL)
err = xnarch_release_irq(intr->irq);
return err;
}
p = &e->next;
}
xnlogerr("attempted to detach a non previously attached interrupt "
"object.\n");
return err;
}
static inline int xnintr_irq_detach(xnintr_t *intr)
{
int irq = intr->irq, ret;
xnlock_get(&xnirqs[irq].lock);
ret = xnarch_release_irq(irq);
xnlock_put(&xnirqs[irq].lock);
xnintr_sync_stat_references(intr);
return ret;
}
static inline int xnintr_irq_detach(xnintr_t *intr)
{
int irq = intr->irq, err;
xnlock_get(&xnirqs[irq].lock);
err = xnarch_release_irq(irq);
xnlock_put(&xnirqs[irq].lock);
return err;
}
static inline int xnintr_irq_detach(xnintr_t *intr)
{
xnintr_irq_t *shirq = &xnirqs[intr->irq];
xnintr_t *e, **p = &shirq->handlers;
int err = 0;
if (intr->irq >= RTHAL_NR_IRQS)
return -EINVAL;
if (!__testbits(intr->flags, XN_ISR_ATTACHED))
return -EPERM;
__clrbits(intr->flags, XN_ISR_ATTACHED);
while ((e = *p) != NULL) {
if (e == intr) {
/* Remove the given interrupt object from the list. */
xnlock_get(&shirq->lock);
*p = e->next;
xnlock_put(&shirq->lock);
/* Release the IRQ line if this was the last user */
if (shirq->handlers == NULL)
err = xnarch_release_irq(intr->irq);
return err;
}
p = &e->next;
}
xnlogerr("attempted to detach a non previously attached interrupt "
"object.\n");
return err;
}
