diff --git a/drivers/mfd/wm8350-i2c.c b/drivers/mfd/wm8350-i2c.c
index 8dfe21b..3e0ce0e 100644
--- a/drivers/mfd/wm8350-i2c.c
+++ b/drivers/mfd/wm8350-i2c.c
@@ -30,7 +30,12 @@
 	ret = i2c_master_send(wm8350->i2c_client, &reg, 1);
 	if (ret < 0)
 		return ret;
-	return i2c_master_recv(wm8350->i2c_client, dest, bytes);
+	ret = i2c_master_recv(wm8350->i2c_client, dest, bytes);
+	if (ret < 0)
+		return ret;
+	if (ret != bytes)
+		return -EIO;
+	return 0;
 }
 
 static int wm8350_i2c_write_device(struct wm8350 *wm8350, char reg,
@@ -38,13 +43,19 @@
 {
 	/* we add 1 byte for device register */
 	u8 msg[(WM8350_MAX_REGISTER << 1) + 1];
+	int ret;
 
 	if (bytes > ((WM8350_MAX_REGISTER << 1) + 1))
 		return -EINVAL;
 
 	msg[0] = reg;
 	memcpy(&msg[1], src, bytes);
-	return i2c_master_send(wm8350->i2c_client, msg, bytes + 1);
+	ret = i2c_master_send(wm8350->i2c_client, msg, bytes + 1);
+	if (ret < 0)
+		return ret;
+	if (ret != bytes + 1)
+		return -EIO;
+	return 0;
 }
 
 static int wm8350_i2c_probe(struct i2c_client *i2c,