[libsecret/wip/dueno/secret-tool-crash] secret-tool: Fix secret_password_clearv_sync return value check

[Daiki Ueno <dueno src gnome org>]

commit 9472b0ab390d3a3be3d58691db06ee11977f0bff
Author: Daiki Ueno <dueno src gnome org>
Date:   Sat Apr 3 06:50:37 2021 +0200

    secret-tool: Fix secret_password_clearv_sync return value check
    
    This was a regression introduced in the rewrite using the simple
    API (commit 6886aebb0457d752f348a4cedc5a11ce109544ee).
    
    Reported by Chih-Hsuan Yen in:
    https://gitlab.gnome.org/GNOME/libsecret/-/issues/56
    
    Signed-off-by: Daiki Ueno <dueno src gnome org>

 tool/secret-tool.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/tool/secret-tool.c b/tool/secret-tool.c
index 5d95194..9335e37 100644
--- a/tool/secret-tool.c
+++ b/tool/secret-tool.c
@@ -142,7 +142,10 @@ secret_tool_action_clear (int argc,
        g_hash_table_unref (attributes);
 
        if (!ret) {
-               g_printerr ("%s: %s\n", g_get_prgname (), error->message);
+               if (error != NULL) {
+                       g_printerr ("%s: %s\n", g_get_prgname (), error->message);
+                       g_error_free (error);
+               }
                return 1;
        }
 
@@ -215,6 +218,7 @@ secret_tool_action_lookup (int argc,
 
        if (error != NULL) {
                g_printerr ("%s: %s\n", g_get_prgname (), error->message);
+               g_error_free (error);
                return 1;
        }
 
@@ -482,6 +486,7 @@ secret_tool_action_search (int argc,
 
        if (error != NULL) {
                g_printerr ("%s: %s\n", g_get_prgname (), error->message);
+               g_error_free (error);
                return 1;
        }