irq: add remove_irq() for freeing of setup_irq() irqs
Impact: add new API
This patch adds a remove_irq() function for releasing
interrupts requested with setup_irq().
Without this patch we have no way of releasing such
interrupts since free_irq() today tries to kfree()
the irqaction passed with setup_irq().
Signed-off-by: Magnus Damm <damm@igel.co.jp>
LKML-Reference: <20090312120542.2926.56609.sendpatchset@rx1.opensource.se>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/irq.h b/include/linux/irq.h
index f899b50..56f9988 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -236,6 +236,7 @@
#include <asm/hw_irq.h>
extern int setup_irq(unsigned int irq, struct irqaction *new);
+extern struct irqaction *remove_irq(unsigned int irq, void *dev_id);
#ifdef CONFIG_GENERIC_HARDIRQS