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udev: check return value of symlink

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This commit is contained in:
Václav Pavlín 2012-09-21 12:52:08 +02:00 committed by Kay Sievers
parent 029f4f21fc
commit 6bb2f0a08a
1 changed files with 4 additions and 1 deletions
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5
src/udev/udev-watch.c
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@ -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);
}