From: Václav Pavlín <vpavlin@redhat.com>
Date: Fri, 21 Sep 2012 10:52:08 +0000 (+0200)
Subject: udev: check return value of symlink
X-Git-Tag: v192~23
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=6bb2f0a08a321eb165b28de1584884bdfc0c27ee

udev: check return value of symlink
---

diff --git a/src/udev/udev-watch.c b/src/udev/udev-watch.c
index c27a280bd..eebcee655 100644
--- a/src/udev/udev-watch.c
+++ b/src/udev/udev-watch.c
@@ -98,6 +98,7 @@ void udev_watch_begin(struct udev *udev, struct udev_device *dev)
 {
         char filename[UTIL_PATH_SIZE];
         int wd;
+        int r;
 
         if (inotify_fd < 0)
                 return;
@@ -113,7 +114,9 @@ void udev_watch_begin(struct udev *udev, struct udev_device *dev)
         snprintf(filename, sizeof(filename), "/run/udev/watch/%d", wd);
         mkdir_parents(filename, 0755);
         unlink(filename);
-        symlink(udev_device_get_id_filename(dev), filename);
+        r = symlink(udev_device_get_id_filename(dev), filename);
+        if (r < 0)
+                log_error("Failed to create symlink: %m");
 
         udev_device_set_watch_handle(dev, wd);
 }