Commit 0d12ec07 authored by David Daney's avatar David Daney Committed by Thomas Gleixner

irqdomain: Check for NULL function pointer in irq_domain_free_irqs_hierarchy()

A follow-on patch will call irq_domain_free_irqs_hierarchy() when the
free() function pointer may be NULL.

Add a NULL pointer check to handle this new use case.
Signed-off-by: default avatarDavid Daney <david.daney@cavium.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Link: http://lkml.kernel.org/r/1503017616-3252-5-git-send-email-david.daney@cavium.com
parent b526adfe
...@@ -1362,7 +1362,8 @@ static void irq_domain_free_irqs_hierarchy(struct irq_domain *domain, ...@@ -1362,7 +1362,8 @@ static void irq_domain_free_irqs_hierarchy(struct irq_domain *domain,
unsigned int irq_base, unsigned int irq_base,
unsigned int nr_irqs) unsigned int nr_irqs)
{ {
domain->ops->free(domain, irq_base, nr_irqs); if (domain->ops->free)
domain->ops->free(domain, irq_base, nr_irqs);
} }
int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain, int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain,
......
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