Messages in this thread Patch in this message | | | From | David Daney <> | Subject | [PATCH v8 4/7] irqdomain: Check for NULL function pointer in irq_domain_free_irqs_hierarchy() | Date | Thu, 17 Aug 2017 17:53:33 -0700 |
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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: David Daney <david.daney@cavium.com> --- kernel/irq/irqdomain.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 2093b88..24fda75 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -1362,7 +1362,8 @@ static void irq_domain_free_irqs_hierarchy(struct irq_domain *domain, unsigned int irq_base, 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, -- 1.8.3.1
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