[S390] cio: Dont print trailing \0 in modalias_show().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 6b264bd..001682e 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -272,7 +272,7 @@
 	struct ccw_device_id *id = &(cdev->id);
 	int len;
 
-	len = snprint_alias(buf, PAGE_SIZE, id, "\n") + 1;
+	len = snprint_alias(buf, PAGE_SIZE, id, "\n");
 
 	return len > PAGE_SIZE ? PAGE_SIZE : len;
 }