core: downgrade legit error logs (#5705)

manager_sync_bus_names() function retrieves the dbus names
and compares it with unit bus names. It could be right
after the list is retrieved, the dbus peer is disconnected.
In this case it is really not an ERROR print if
sd_bus_get_name_creds() or sd_bus_creds_get_unique_name()
fail.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/dbus.c b/src/core/dbus.c
index 065f2d81d6..cfc045d282 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -753,13 +753,13 @@ int manager_sync_bus_names(Manager *m, sd_bus *bus) {
                         /* If it is, determine its current owner */
                         r = sd_bus_get_name_creds(bus, name, SD_BUS_CREDS_UNIQUE_NAME, &creds);
                         if (r < 0) {
-                                log_error_errno(r, "Failed to get bus name owner %s: %m", name);
+                                log_full_errno(r == -ENXIO ? LOG_DEBUG : LOG_ERR, r, "Failed to get bus name owner %s: %m", name);
                                 continue;
                         }
 
                         r = sd_bus_creds_get_unique_name(creds, &unique);
                         if (r < 0) {
-                                log_error_errno(r, "Failed to get unique name for %s: %m", name);
+                                log_full_errno(r == -ENXIO ? LOG_DEBUG : LOG_ERR, r, "Failed to get unique name for %s: %m", name);
                                 continue;
                         }