mfd: Acknowledge WM8994 IRQs before reporting

This ensures we never have a window where we've handled an interrupt but
not told the hardware about it.

Signed-off-by: Mark Brown <[e-mail]>
Signed-off-by: Samuel Ortiz <[e-mail]>

drivers/mfd/wm8994-irq.c

···
 		status[i] &= ~wm8994->irq_masks_cur[i];
 	}
 
-	/* Report */
-	for (i = 0; i < ARRAY_SIZE(wm8994_irqs); i++) {
-		if (status[wm8994_irqs[i].reg - 1] & wm8994_irqs[i].mask)
-			handle_nested_irq(wm8994->irq_base + i);
-	}
-
 	/* Ack any unmasked IRQs */
 	for (i = 0; i < ARRAY_SIZE(status); i++) {
 		if (status[i])
 			wm8994_reg_write(wm8994, WM8994_INTERRUPT_STATUS_1 + i,
 					 status[i]);
+	}
+
+	/* Report */
+	for (i = 0; i < ARRAY_SIZE(wm8994_irqs); i++) {
+		if (status[wm8994_irqs[i].reg - 1] & wm8994_irqs[i].mask)
+			handle_nested_irq(wm8994->irq_base + i);
 	}
 
 	return IRQ_HANDLED;