diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-04-29 08:55:52 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-05-07 09:08:16 +0200 |
| commit | 782249a997472acec7e8d8f04177750192712a19 (patch) | |
| tree | 9a8ca880dc20e87b7add8d9700469bd8491462f4 /kernel/irq/manage.c | |
| parent | 5fec6d5cd24a35f5b03612dd02975e3be1b788b8 (diff) | |
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
Diffstat (limited to 'kernel/irq/manage.c')
| -rw-r--r-- | kernel/irq/manage.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index fd5fcf3ea4ed..1783c5294df5 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -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; - - 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); + scoped_irqdesc_get_and_buslock(irq, 0) { + struct irq_data *data = irq_desc_get_irq_data(scoped_irqdesc); - 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); |