[PATCH v5 2/4] genirq: Move NULL check into irqdesc_lock guard unlock expression

[Dmitry Ilvokhin]

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@xxxxxxxxxxxx>
---
 kernel/irq/internals.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 9412e57056f5..347cb333b9fe 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -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,
-- 
2.53.0-Meta