quota: Log a bit more when "Unknown backend" error happens.

--HG--
branch : HEAD

diff --git a/src/plugins/quota/quota.c b/src/plugins/quota/quota.c
index 6c754baa7dd7c6d40f2b02ea0a5147051f9e49ec..f61cafcf2794cda75291daa1a5aee7f4b8a8a8d2 100644 (file)
--- a/src/plugins/quota/quota.c
+++ b/src/plugins/quota/quota.c
@@ -99,8 +99,10 @@ quota_root_settings_init(struct quota_settings *quota_set, const char *root_def)
        }
 
        backend = quota_backend_find(backend_name);
-       if (backend == NULL)
-               i_fatal("Unknown quota backend: %s", backend_name);
+       if (backend == NULL) {
+               i_error("Unknown quota backend: %s", backend_name);
+               return NULL;
+       }
        
        root_set = p_new(quota_set->pool, struct quota_root_settings, 1);
        root_set->set = quota_set;