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genirq/manage: Rework irq_get_irqchip_state() 

Use the new guards to get and lock the interrupt descriptor and tidy up the
code.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250429065422.612184618@linutronix.de
pull/1250/head
Thomas Gleixner 2025-04-29 08:55:52 +02:00
parent 5fec6d5cd2
commit 782249a997
1 changed files with 6 additions and 16 deletions
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22
kernel/irq/manage.c
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@ -2678,24 +2678,14 @@ static int __irq_get_irqchip_state(struct irq_data *data, enum irqchip_irq_state
* This function should be called with preemption disabled if the interrupt
* controller has per-cpu registers.
*/
int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
bool *state)
int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which, bool *state)
{
struct irq_desc *desc;
struct irq_data *data;
unsigned long flags;
int err = -EINVAL;
scoped_irqdesc_get_and_buslock(irq, 0) {
struct irq_data *data = irq_desc_get_irq_data(scoped_irqdesc);
desc = irq_get_desc_buslock(irq, &flags, 0);
if (!desc)
return err;
data = irq_desc_get_irq_data(desc);
err = __irq_get_irqchip_state(data, which, state);
irq_put_desc_busunlock(desc, flags);
return err;
return __irq_get_irqchip_state(data, which, state);
}
return -EINVAL;
}
EXPORT_SYMBOL_GPL(irq_get_irqchip_state);