[PATCH] genirq: add irq-chip support

Enable platforms to use the irq-chip and irq-flow abstractions: allow setting
of the chip, the type and provide highlevel handlers for common irq-flows.

[rostedt@goodmis.org: misroute-irq: Don't call desc->chip->end because of edge interrupts]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index ca187b83f897..b483deed311c 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -79,7 +79,7 @@ static int misrouted_irq(int irq, struct pt_regs *regs)
                  * If we did actual work for the real IRQ line we must let the
                  * IRQ controller clean up too
                  */
-                if (work)
+                if (work && desc->chip && desc->chip->end)
                         desc->chip->end(i);
                 spin_unlock(&desc->lock);
         }