diff --git a/drivers/power/pmic/pmic-uclass.c b/drivers/power/pmic/pmic-uclass.c
index 8b19998..7211026 100644
--- a/drivers/power/pmic/pmic-uclass.c
+++ b/drivers/power/pmic/pmic-uclass.c
@@ -133,8 +133,9 @@
 	u8 byte;
 	int ret;
 
+	debug("%s: reg=%x", __func__, reg);
 	ret = pmic_read(dev, reg, &byte, 1);
-	debug("%s: reg=%x, value=%x\n", __func__, reg, byte);
+	debug(", value=%x, ret=%d\n", byte, ret);
 
 	return ret ? ret : byte;
 }
@@ -142,9 +143,13 @@
 int pmic_reg_write(struct udevice *dev, uint reg, uint value)
 {
 	u8 byte = value;
+	int ret;
 
-	debug("%s: reg=%x, value=%x\n", __func__, reg, value);
-	return pmic_write(dev, reg, &byte, 1);
+	debug("%s: reg=%x, value=%x", __func__, reg, value);
+	ret = pmic_write(dev, reg, &byte, 1);
+	debug(", ret=%d\n", ret);
+
+	return ret;
 }
 
 int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set)
diff --git a/drivers/power/pmic/rk808.c b/drivers/power/pmic/rk808.c
index 11d5f07..770f471 100644
--- a/drivers/power/pmic/rk808.c
+++ b/drivers/power/pmic/rk808.c
@@ -30,9 +30,12 @@
 static int rk808_write(struct udevice *dev, uint reg, const uint8_t *buff,
 			  int len)
 {
-	if (dm_i2c_write(dev, reg, buff, len)) {
+	int ret;
+
+	ret = dm_i2c_write(dev, reg, buff, len);
+	if (ret) {
 		debug("write error to device: %p register: %#x!", dev, reg);
-		return -EIO;
+		return ret;
 	}
 
 	return 0;
@@ -40,9 +43,12 @@
 
 static int rk808_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
 {
-	if (dm_i2c_read(dev, reg, buff, len)) {
+	int ret;
+
+	ret = dm_i2c_read(dev, reg, buff, len);
+	if (ret) {
 		debug("read error from device: %p register: %#x!", dev, reg);
-		return -EIO;
+		return ret;
 	}
 
 	return 0;
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
index 4241a4c..fec2886 100644
--- a/drivers/power/regulator/regulator-uclass.c
+++ b/drivers/power/regulator/regulator-uclass.c
@@ -178,7 +178,7 @@
 		printf("; set %d uA", uc_pdata->min_uA);
 	printf("; enabling");
 	if (ret)
-		printf(" (ret: %d)\n", ret);
+		printf(" (ret: %d)", ret);
 	printf("\n");
 }