gpio/davinci: Fix race in installing chained irq handler

Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().
    
Search and conversion was done with coccinelle.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>

drivers/gpio/gpio-davinci.c

@@ -578,15 +578,13 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
 		writel_relaxed(~0, &g->clr_falling);
 		writel_relaxed(~0, &g->clr_rising);
 
-		/* set up all irqs in this bank */
-		irq_set_chained_handler(bank_irq, gpio_irq_handler);
-
 		/*
 		 * Each chip handles 32 gpios, and each irq bank consists of 16
 		 * gpio irqs. Pass the irq bank's corresponding controller to
 		 * the chained irq handler.
 		 */
-		irq_set_handler_data(bank_irq, &chips[gpio / 32]);
+		irq_set_chained_handler_and_data(bank_irq, gpio_irq_handler,
+						 &chips[gpio / 32]);
 
 		binten |= BIT(bank);
 	}