From: Tom Gundersen <teg@jklm.no>
Date: Tue, 2 Jun 2015 14:53:36 +0000 (+0200)
Subject: udev-builtin: path_id - don't pass NULL to udev_device_get_parent()
X-Git-Tag: v221~215
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=28541a3d7c8b1caf0bda5e812566a1f5e7956352;p=platform%2Fupstream%2Fsystemd.git

udev-builtin: path_id - don't pass NULL to udev_device_get_parent()

Being explicit about this makes the code easier to follow IMHO.
---

diff --git a/src/udev/udev-builtin-path_id.c b/src/udev/udev-builtin-path_id.c
index 0fa11f6..4ca0a69 100644
--- a/src/udev/udev-builtin-path_id.c
+++ b/src/udev/udev-builtin-path_id.c
@@ -665,7 +665,8 @@ static int builtin_path_id(struct udev_device *dev, int argc, char *argv[], bool
                         supported_parent = true;
                 }
 
-                parent = udev_device_get_parent(parent);
+                if (parent)
+                        parent = udev_device_get_parent(parent);
         }
 
         /*