ptp: ocp: Report error if resource registration fails.

If a resource could not be registered, report the name of
the resource and the error code.
Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/ptp/ptp_ocp.c

@@ -1158,8 +1158,12 @@ ptp_ocp_register_resources(struct ptp_ocp *bp, kernel_ulong_t driver_data)
 		if (!ptp_ocp_allow_irq(bp, r))
 			continue;
 		err = r->setup(bp, r);
-		if (err)
+		if (err) {
+			dev_err(&bp->pdev->dev,
+				"Could not register %s: err %d\n",
+				r->name, err);
 			break;
+		}
 	}
 	return err;
 }