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irqdomain: Fix irq_create_direct_mapping() to test irq_domain type. 

irq_create_direct_mapping can only be used with the NOMAP type.  Make
the function test to ensure it is passed the correct type of
irq_domain.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Grant Likely 2012-06-03 22:04:38 -07:00
parent d6b0d1f705
commit 9844a5524e
1 changed files with 2 additions and 2 deletions
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4
kernel/irq/irqdomain.c
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@ -481,8 +481,8 @@ unsigned int irq_create_direct_mapping(struct irq_domain *domain)
if (domain == NULL)
domain = irq_default_domain;
BUG_ON(domain == NULL);
WARN_ON(domain->revmap_type != IRQ_DOMAIN_MAP_NOMAP);
if (WARN_ON(!domain || domain->revmap_type != IRQ_DOMAIN_MAP_NOMAP))
return 0;
virq = irq_alloc_desc_from(1, of_node_to_nid(domain->of_node));
if (!virq) {