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-rw-r--r--include/linux/irq.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 69855b23dff9..6f463606c318 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -372,6 +372,13 @@ set_irq_chained_handler(unsigned int irq,
extern int create_irq(void);
extern void destroy_irq(unsigned int irq);
+/* Test to see if a driver has successfully requested an irq */
+static inline int irq_has_action(unsigned int irq)
+{
+ struct irq_desc *desc = irq_desc + irq;
+ return desc->action != NULL;
+}
+
/* Dynamic irq helper functions */
extern void dynamic_irq_init(unsigned int irq);
extern void dynamic_irq_cleanup(unsigned int irq);