irqchip/exynos-combiner: Consolidate chained IRQ handler install/remove

Author: Thomas Gleixner <tglx@linutronix.de>

Chained irq handlers usually set up handler data as well. We now have
a function to set both under irq_desc->lock. Replace the two calls
with one.

Search and conversion was done with coccinelle:

@@
expression E1, E2, E3;
@@
(
-if (irq_set_handler_data(E1, E2) != 0)
-   BUG();
|
-irq_set_handler_data(E1, E2);
)
-irq_set_chained_handler(E1, E3);
+irq_set_chained_handler_and_data(E1, E3, E2);

@@
expression E1, E2, E3;
@@
(
-if (irq_set_handler_data(E1, E2) != 0)
-   BUG();
...
|
-irq_set_handler_data(E1, E2);
...
)
-irq_set_chained_handler(E1, E3);
+irq_set_chained_handler_and_data(E1, E3, E2);

Reported-by: Russell King 
Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Thomas Gleixner 
Cc: Jason Cooper 
Cc: Kukjin Kim 
Cc: Krzysztof Kozlowski 
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org

---
 drivers/irqchip/exynos-combiner.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
 
diff --git a/drivers/irqchip/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index 05cdccc..6ad04ac 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -121,9 +121,8 @@ static struct irq_chip combiner_chip = {
 static void __init combiner_cascade_irq(struct combiner_chip_data *combiner_data,
 					unsigned int irq)
 {
-	if (irq_set_handler_data(irq, combiner_data) != 0)
-		BUG();
-	irq_set_chained_handler(irq, combiner_handle_cascade_irq);
+	irq_set_chained_handler_and_data(irq, combiner_handle_cascade_irq,
+					 combiner_data);
 }
 
 static void __init combiner_init_one(struct combiner_chip_data *combiner_data,