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authorGrant Likely <grant.likely@secretlab.ca>2012-06-03 22:04:38 -0700
committerGrant Likely <grant.likely@secretlab.ca>2012-07-11 16:16:13 +0100
commit9844a5524ec532aee826c35e3031637c7fc8287b (patch)
tree3fd2d2bd4ecdb8252d66f1f8c30d4a03e270ea0d /kernel/irq
parentd6b0d1f7058f7cf818138cd7fd116dca3f3576d9 (diff)
downloadlinux-9844a5524ec532aee826c35e3031637c7fc8287b.tar.bz2
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>
Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/irqdomain.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index f540bb1eff84..c0e638ba9c2a 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -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) {