[S390] dasd: fix return value of dasd_generic_probe()

Using the return value of ccw_device_set_online as return value for
dasd_generic_probe() causes the DASD to fail setting online

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index e6bfce6..da4fe1e 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1969,9 +1969,10 @@
 		ret = ccw_device_set_online(cdev);
 	if (ret)
 		printk(KERN_WARNING
-		       "dasd_generic_probe: could not initially online "
-		       "ccw-device %s\n", cdev->dev.bus_id);
-	return ret;
+		       "dasd_generic_probe: could not initially "
+		       "online ccw-device %s; return code: %d\n",
+		       cdev->dev.bus_id, ret);
+	return 0;
 }
 
 /*