diff --git a/drivers/mfd/rc5t583-irq.c b/drivers/mfd/rc5t583-irq.c
index fa6f80f..fe00cdd 100644
--- a/drivers/mfd/rc5t583-irq.c
+++ b/drivers/mfd/rc5t583-irq.c
@@ -255,7 +255,7 @@
 {
 	struct rc5t583 *rc5t583 = data;
 	uint8_t int_sts[RC5T583_MAX_INTERRUPT_MASK_REGS];
-	uint8_t master_int;
+	uint8_t master_int = 0;
 	int i;
 	int ret;
 	unsigned int rtc_int_sts = 0;
diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c
index 3a8fa88..d6b5072 100644
--- a/drivers/mfd/rc5t583.c
+++ b/drivers/mfd/rc5t583.c
@@ -85,7 +85,7 @@
 	int id, int ext_pwr, int slots)
 {
 	int ret;
-	uint8_t sleepseq_val;
+	uint8_t sleepseq_val = 0;
 	unsigned int en_bit;
 	unsigned int slot_bit;