[mutter] MonitorXrandr: Fix segv when accessing possible_clones

[Olav Vitters <ovitters src gnome org>]

commit 74764199404e4b3b9a176e4ee716a16503e5691d
Author: Colin Guthrie <colin mageia org>
Date:   Thu Aug 22 17:39:56 2013 +0100

    MonitorXrandr: Fix segv when accessing possible_clones
    
    This code requires a double pass and the segv happens later
    when trying to iterate over the array.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=706598

 src/core/monitor-xrandr.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/core/monitor-xrandr.c b/src/core/monitor-xrandr.c
index 1a66c13..0a7dc0b 100644
--- a/src/core/monitor-xrandr.c
+++ b/src/core/monitor-xrandr.c
@@ -532,7 +532,7 @@ meta_monitor_manager_xrandr_read_current (MetaMonitorManager *manager)
          */
          for (j = 0; j < (unsigned)output->nclone; j++)
            {
-             meta_output->possible_clones = GINT_TO_POINTER (output->clones[j]);
+             meta_output->possible_clones[j] = GINT_TO_POINTER (output->clones[j]);
            }
 
          meta_output->is_primary = ((XID)meta_output->output_id == primary_output);