diff --git a/man/systemd-mount.xml b/man/systemd-mount.xml
index 63e4fc40f1..40dc70fe70 100644
--- a/man/systemd-mount.xml
+++ b/man/systemd-mount.xml
@@ -101,7 +101,7 @@
     systems that may be mounted with this command.</para>
 
     <para><command>systemd-umount</command> can be used to unmount a mount or automount point. It is the same
-    as <command>systemd-mount</command> <option>--unmount</option>.</para>
+    as <command>systemd-mount</command> <option>--umount</option>.</para>
   </refsect1>
 
   <refsect1>
diff --git a/src/core/dbus.c b/src/core/dbus.c
index 96bf975f88..6d3f714192 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -92,7 +92,7 @@ int bus_forward_agent_released(Manager *m, const char *path) {
                                "Released",
                                "s", path);
         if (r < 0)
-                return log_warning_errno(r, "Failed to propagate agent release message: %m");
+                return log_debug_errno(r, "Failed to propagate agent release message: %m");
 
         return 1;
 }
diff --git a/src/core/manager.c b/src/core/manager.c
index b4c252a135..5237b47660 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -1784,7 +1784,7 @@ static int manager_dispatch_cgroups_agent_fd(sd_event_source *source, int fd, ui
         buf[n] = 0;
 
         manager_notify_cgroup_empty(m, buf);
-        bus_forward_agent_released(m, buf);
+        (void) bus_forward_agent_released(m, buf);
 
         return 0;
 }
diff --git a/src/shared/efivars.c b/src/shared/efivars.c
index 8229e6b183..2503346610 100644
--- a/src/shared/efivars.c
+++ b/src/shared/efivars.c
@@ -269,7 +269,7 @@ int efi_set_variable(
         _cleanup_close_ int fd = -1;
 
         assert(name);
-        assert(value);
+        assert(value || size == 0);
 
         if (asprintf(&p,
                      "/sys/firmware/efi/efivars/%s-%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",