diff --git a/drivers/hwmon/powerz.c b/drivers/hwmon/powerz.c
index a75b941bd6e2..96438f5f05d4 100644
--- a/drivers/hwmon/powerz.c
+++ b/drivers/hwmon/powerz.c
@@ -106,6 +106,7 @@ static void powerz_usb_cmd_complete(struct urb *urb)
 
 static int powerz_read_data(struct usb_device *udev, struct powerz_priv *priv)
 {
+	long rc;
 	int ret;
 
 	if (!priv->urb)
@@ -127,8 +128,14 @@ static int powerz_read_data(struct usb_device *udev, struct powerz_priv *priv)
 	if (ret)
 		return ret;
 
-	if (!wait_for_completion_interruptible_timeout
-	    (&priv->completion, msecs_to_jiffies(5))) {
+	rc = wait_for_completion_interruptible_timeout(&priv->completion,
+						       msecs_to_jiffies(5));
+	if (rc < 0) {
+		usb_kill_urb(priv->urb);
+		return rc;
+	}
+
+	if (rc == 0) {
 		usb_kill_urb(priv->urb);
 		return -EIO;
 	}