usb: misc: legousbtower: don't print error when allocating urb fails

kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/misc/legousbtower.c

···
 		goto error;
 	}
 	dev->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!dev->interrupt_in_urb) {
-		dev_err(idev, "Couldn't allocate interrupt_in_urb\n");
+	if (!dev->interrupt_in_urb)
 		goto error;
-	}
 	dev->interrupt_out_buffer = kmalloc (write_buffer_size, GFP_KERNEL);
 	if (!dev->interrupt_out_buffer) {
 		dev_err(idev, "Couldn't allocate interrupt_out_buffer\n");
 		goto error;
 	}
 	dev->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!dev->interrupt_out_urb) {
-		dev_err(idev, "Couldn't allocate interrupt_out_urb\n");
+	if (!dev->interrupt_out_urb)
 		goto error;
-	}
 	dev->interrupt_in_interval = interrupt_in_interval ? interrupt_in_interval : dev->interrupt_in_endpoint->bInterval;
 	dev->interrupt_out_interval = interrupt_out_interval ? interrupt_out_interval : dev->interrupt_out_endpoint->bInterval;