[media] drivers/media/usb/hdpvr/hdpvr-core.c: fix error return code

Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/hdpvr/hdpvr-core.c

@@ -401,12 +401,14 @@ static int hdpvr_probe(struct usb_interface *interface,
 	client = hdpvr_register_ir_rx_i2c(dev);
 	if (!client) {
 		v4l2_err(&dev->v4l2_dev, "i2c IR RX device register failed\n");
+		retval = -ENODEV;
 		goto reg_fail;
 	}
 
 	client = hdpvr_register_ir_tx_i2c(dev);
 	if (!client) {
 		v4l2_err(&dev->v4l2_dev, "i2c IR TX device register failed\n");
+		retval = -ENODEV;
 		goto reg_fail;
 	}
 #endif