diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2012-06-04 07:04:38 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-07-11 17:16:13 +0200 |
| commit | 9844a5524ec532aee826c35e3031637c7fc8287b (patch) | |
| tree | 3fd2d2bd4ecdb8252d66f1f8c30d4a03e270ea0d /kernel | |
| parent | irqdomain: Eliminate dedicated radix lookup functions (diff) | |
| download | linux-9844a5524ec532aee826c35e3031637c7fc8287b.tar.xz linux-9844a5524ec532aee826c35e3031637c7fc8287b.zip | |
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')
| -rw-r--r-- | kernel/irq/irqdomain.c | 4 |
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) { |