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-rw-r--r--src/core/unit.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/core/unit.c b/src/core/unit.c
index 45ce1b172d..1aa0321b23 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -1420,10 +1420,6 @@ int unit_start(Unit *u) {
if (u->load_state != UNIT_LOADED)
return -EINVAL;
- /* Units of types that aren't supported annot be started either */
- if (!unit_supported(u))
- return -EOPNOTSUPP;
-
/* If this is already started, then this will succeed. Note
* that this will even succeed if this unit is not startable
* by the user. This is relied on to detect when we need to
@@ -1449,6 +1445,15 @@ int unit_start(Unit *u) {
return -EPROTO;
}
+ /* Units of types that aren't supported cannot be
+ * started. Note that we do this test only after the condition
+ * checks, so that we rather return condition check errors
+ * (which are usually not considered a true failure) than "not
+ * supported" errors (which are considered a failure).
+ */
+ if (!unit_supported(u))
+ return -EOPNOTSUPP;
+
/* Forward to the main object, if we aren't it. */
following = unit_following(u);
if (following) {