From 10303903dc22ad1711df58556e7057ce59471b2e Mon Sep 17 00:00:00 2001

From: Lennart Poettering <lennart@poettering.net>

Date: Fri, 24 Apr 2015 17:28:06 +0200

Subject: [PATCH] unit: don't add automatic dependencies on device units if

 they aren't supported

http://lists.freedesktop.org/archives/systemd-devel/2015-April/031187.html

(cherry picked from commit 47bc12e1ba35d38edda737dae232088d6d3ae688)

---

 src/core/unit.c | 10 +++++++---

 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/core/unit.c b/src/core/unit.c

index 565455bd63..b9e1f13eaf 100644

--- a/src/core/unit.c

+++ b/src/core/unit.c

@@ -2830,14 +2830,18 @@ int unit_add_node_link(Unit *u, const char *what, bool wants) {

         assert(u);

-        if (!what)

-                return 0;

-

         /* Adds in links to the device node that this unit is based on */

+        if (isempty(what))

+                return 0;

         if (!is_device_path(what))

                 return 0;

+        /* When device units aren't supported (such as in a

+         * container), don't create dependencies on them. */

+        if (unit_vtable[UNIT_DEVICE]->supported && !unit_vtable[UNIT_DEVICE]->supported(u->manager))

+                return 0;

+

         e = unit_name_from_path(what, ".device");

         if (!e)

                 return -ENOMEM;