--- zzzz-none-000/linux-3.10.107/drivers/mfd/pcf50633-irq.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/mfd/pcf50633-irq.c	2021-02-04 17:41:59.000000000 +0000
@@ -55,7 +55,7 @@
 static int __pcf50633_irq_mask_set(struct pcf50633 *pcf, int irq, u8 mask)
 {
 	u8 reg, bit;
-	int ret = 0, idx;
+	int idx;
 
 	idx = irq >> 3;
 	reg = PCF50633_REG_INT1M + idx;
@@ -72,7 +72,7 @@
 
 	mutex_unlock(&pcf->lock);
 
-	return ret;
+	return 0;
 }
 
 int pcf50633_irq_mask(struct pcf50633 *pcf, int irq)