tmpfiles: don't exit with an error code if we cannot access all files

This is just to avoid confusion if people use stuff like FUSE file
systems or SELinux which might disallow access to files even if tmpfiles
is running as root.

We still log away if we cannot access a file, but we do not return a
failure exit code in the end.

TODO

@@ -71,6 +71,8 @@ Features:
 
 * support notifications for services being enabled/disabled
 
+* add support for /bin/mount -s
+
 * GC unreferenced jobs (such as .device jobs)
 
 * add JoinControllers= to system.conf to mount certain cgroup
@@ -180,6 +182,8 @@ Features:
 
 * detect LXC environment
 
+* investigate whether the gnome pty helper should be moved into systemd, to provide cgroup support.
+
 * Maybe store in unit files whether a service should be enabled by default on package installation
   (belongs into a distro pattern though, not in an upstream package's service file)
 

src/tmpfiles.c

@@ -983,15 +983,11 @@ int main(int argc, char *argv[]) {
                 strv_free(files);
         }
 
-
-
         HASHMAP_FOREACH(i, globs, iterator)
-                if (process_item(i) < 0)
-                        r = EXIT_FAILURE;
+                process_item(i);
 
         HASHMAP_FOREACH(i, items, iterator)
-                if (process_item(i) < 0)
-                        r = EXIT_FAILURE;
+                process_item(i);
 
 finish:
         while ((i = hashmap_steal_first(items)))