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genirq: Move NULL check into irqdesc_lock guard unlock expression

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irqdesc_lock uses __DEFINE_UNLOCK_GUARD() directly with a custom
constructor that can set .lock to NULL.

In preparation for removing the NULL check from __DEFINE_UNLOCK_GUARD(),
move the NULL check into the irqdesc_lock unlock expression, making the
NULL handling explicit at the call site.

No functional change.

Signed-off-by: Dmitry Ilvokhin <d@ilvokhin.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/ab457810653e4356e29b2d74ba616478bd9328ad.1780064327.git.d@ilvokhin.com
This commit is contained in:
Dmitry Ilvokhin 2026-06-02 07:12:51 +00:00 committed by Peter Zijlstra
parent 813e5598e5
commit 08d4a7837f
1 changed files with 1 additions and 1 deletions
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2
kernel/irq/internals.h
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@ -171,7 +171,7 @@ void __irq_put_desc_unlock(struct irq_desc *desc, unsigned long flags, bool bus)
__DEFINE_CLASS_IS_CONDITIONAL(irqdesc_lock, true);
__DEFINE_UNLOCK_GUARD(irqdesc_lock, struct irq_desc,
__irq_put_desc_unlock(_T->lock, _T->flags, _T->bus),
if (_T->lock) __irq_put_desc_unlock(_T->lock, _T->flags, _T->bus),
unsigned long flags; bool bus);
static inline class_irqdesc_lock_t class_irqdesc_lock_constructor(unsigned int irq, bool bus,