desktop-shell: Avoid NULL pointer dereference

When there are no outputs present, an output pointer
can be NULL. Dereferencing such pointer will result
in a crash.

Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Armin Krezović <krezovic.armin@gmail.com>

diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
index 7deba55..825c6c3 100644 (file)
--- a/desktop-shell/shell.c
+++ b/desktop-shell/shell.c
@@ -2290,7 +2290,7 @@ shell_surface_set_class(struct wl_client *client,
 static void
 restore_output_mode(struct weston_output *output)
 {
-       if (output->original_mode)
+       if (output && output->original_mode)
                weston_output_mode_switch_to_native(output);
 }