app: monitor-config - do it all or nothing

Don't keep trying to use a monitor config when it already failed for one
monitor, otherwise virt-viewer can end up in a situation where none of
the displays are enabled but the program is still running.
So, in case of any failure, let's skip the whole monitor config, forcing
virt-viewer to use the "fallback" one instead.

Resolves: rhbz#1315206

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Acked-by: Pavel Grunt <pgrunt@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/virt-viewer-app.c b/src/virt-viewer-app.c
index 660acef..dac2dcc 100644
--- a/src/virt-viewer-app.c
+++ b/src/virt-viewer-app.c
@@ -404,9 +404,10 @@ virt_viewer_app_parse_monitor_mappings(gchar **mappings, gsize nmappings)
         }
         g_strfreev(tokens);
 
-        if (monitor > nmonitors)
-            g_warning("Initial monitor #%i for display #%i does not exist, skipping...", monitor, display);
-        else {
+        if (monitor > nmonitors) {
+            g_warning("Invalid monitor-mapping configuration: monitor #%i for display #%i does not exist", monitor, display);
+            goto configerror;
+        } else {
             /* config file format is 1-based, not 0-based */
             display--;
             monitor--;