staging: vt6656: main_usb: don't print error when allocating urb fails

kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/main_usb.c

@@ -440,10 +440,8 @@ static bool vnt_alloc_bufs(struct vnt_private *priv)
 
 		/* allocate URBs */
 		tx_context->urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!tx_context->urb) {
-			dev_err(&priv->usb->dev, "alloc tx urb failed\n");
+		if (!tx_context->urb)
 			goto free_tx;
-		}
 
 		tx_context->in_use = false;
 	}
@@ -462,10 +460,8 @@ static bool vnt_alloc_bufs(struct vnt_private *priv)
 
 		/* allocate URBs */
 		rcb->urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!rcb->urb) {
-			dev_err(&priv->usb->dev, "Failed to alloc rx urb\n");
+		if (!rcb->urb)
 			goto free_rx_tx;
-		}
 
 		rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
 		if (!rcb->skb)
@@ -479,10 +475,8 @@ static bool vnt_alloc_bufs(struct vnt_private *priv)
 	}
 
 	priv->interrupt_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!priv->interrupt_urb) {
-		dev_err(&priv->usb->dev, "Failed to alloc int urb\n");
+	if (!priv->interrupt_urb)
 		goto free_rx_tx;
-	}
 
 	priv->int_buf.data_buf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
 	if (!priv->int_buf.data_buf) {