Commit bfd6185d authored Jun 05, 2012 by Mark Brown

regmap: Don't try to map non-existant IRQs

If the driver supplied an empty entry in the array of IRQs then return
an error rather than trying to do the mapping. This is intended for use
with handling chip variants and similar situations.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

parent f8f5701b

drivers/base/regmap/regmap-irq.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -346,6 +346,10 @@ EXPORT_SYMBOL_GPL(regmap_irq_chip_get_base);
		*/
		int regmap_irq_get_virq(struct regmap_irq_chip_data *data, int irq)
		{
		/* Handle holes in the IRQ list */
		if (!data->chip->irqs[irq].mask)
		return -EINVAL;

		return irq_create_mapping(data->domain, irq);
		}
		EXPORT_SYMBOL_GPL(regmap_irq_get_virq);