From 8316e38100c70cd1443ac90074eccdd033aa218d Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 17 Feb 2009 20:28:29 +0100 Subject: irq: further clean up the free_irq() code flow Linus noticed that the 'pp' variable can be eliminated altogether, and the loop can be cleaned up further. Cc: Linus Torvalds Signed-off-by: Ingo Molnar --- kernel/irq/manage.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 7a954b8..de5a765 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -575,7 +575,7 @@ int setup_irq(unsigned int irq, struct irqaction *act) void free_irq(unsigned int irq, void *dev_id) { struct irq_desc *desc = irq_to_desc(irq); - struct irqaction *action, **p, **pp; + struct irqaction *action, **p; unsigned long flags; WARN(in_interrupt(), "Trying to free IRQ %d from IRQ context!\n", irq); @@ -592,7 +592,6 @@ void free_irq(unsigned int irq, void *dev_id) p = &desc->action; for (;;) { action = *p; - pp = p; if (!action) { WARN(1, "Trying to free already-free IRQ %d\n", irq); @@ -601,15 +600,13 @@ void free_irq(unsigned int irq, void *dev_id) return; } + if (action->dev_id == dev_id) + break; p = &action->next; - if (action->dev_id != dev_id) - continue; - - break; } /* Found it - now remove it from the list of entries: */ - *pp = action->next; + *p = action->next; /* Currently used only by UML, might disappear one day: */ #ifdef CONFIG_IRQ_RELEASE_METHOD -- cgit v1.1