[PATCH] genirq: add handle_bad_irq()
Handle bad IRQ vectors via the irqchip mechanism.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index cfdb63e..533068c 100644
--- a/kernel/irq/autoprobe.c
+++ b/kernel/irq/autoprobe.c
@@ -11,6 +11,8 @@
#include <linux/interrupt.h>
#include <linux/delay.h>
+#include "internals.h"
+
/*
* Autodetection depends on the fact that any interrupt that
* comes in on to an unassigned handler will get stuck with
@@ -42,6 +44,12 @@
spin_lock_irq(&desc->lock);
if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
/*
+ * An old-style architecture might still have
+ * the handle_bad_irq handler there:
+ */
+ compat_irq_chip_set_default_handler(desc);
+
+ /*
* Some chips need to know about probing in
* progress:
*/