[tracker-miners/wip/carlosg/coverity-fixes: 3/11] tracker-miner-rss: Check for a NULL domain ontology

[Carlos Garnacho <carlosg src gnome org>]

commit 32b0bc6bc800515db40d67adb84972f619c48862
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Sep 7 18:36:01 2020 +0200

    tracker-miner-rss: Check for a NULL domain ontology
    
    As a matter of fact, it'll be what happens most often. Spotted by
    Coverity.
    
    CID: #354739

 src/miners/rss/tracker-main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/miners/rss/tracker-main.c b/src/miners/rss/tracker-main.c
index 5adca3ce0..225c46615 100644
--- a/src/miners/rss/tracker-main.c
+++ b/src/miners/rss/tracker-main.c
@@ -296,7 +296,7 @@ main (int argc, char **argv)
        g_object_unref (miner);
        g_object_unref (connection);
        g_object_unref (proxy);
-       tracker_domain_ontology_unref (domain_ontology);
+       g_clear_pointer (&domain_ontology, tracker_domain_ontology_unref);
 
        return EXIT_SUCCESS;
 }