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genirq/chip: Rework irq_set_chip_data()

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

Fixup the kernel doc comment while at it.

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/20250429065421.532308759@linutronix.de
This commit is contained in:
Thomas Gleixner 2025-04-29 08:55:25 +02:00
parent c836e5a70c
commit b3801ddc68
1 changed files with 9 additions and 12 deletions
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21
kernel/irq/chip.c
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@ -115,22 +115,19 @@ int irq_set_msi_desc(unsigned int irq, struct msi_desc *entry)
}
/**
* irq_set_chip_data - set irq chip data for an irq
* @irq: Interrupt number
* @data: Pointer to chip specific data
* irq_set_chip_data - set irq chip data for an irq
* @irq: Interrupt number
* @data: Pointer to chip specific data
*
* Set the hardware irq chip data for an irq
* Set the hardware irq chip data for an irq
*/
int irq_set_chip_data(unsigned int irq, void *data)
{
unsigned long flags;
struct irq_desc *desc = irq_get_desc_lock(irq, &flags, 0);
if (!desc)
return -EINVAL;
desc->irq_data.chip_data = data;
irq_put_desc_unlock(desc, flags);
return 0;
scoped_irqdesc_get_and_lock(irq, 0) {
scoped_irqdesc->irq_data.chip_data = data;
return 0;
}
return -EINVAL;
}
EXPORT_SYMBOL(irq_set_chip_data);