fix backlight plugin not to crash when no laptop_panels found.

Fix backlight plugin not to crash when no laptop_panels found.

1 files changed, 9 insertions, 7 deletions

diff --git a/plugins/glue/backlight/ohm-plugin-backlight.c b/plugins/glue/backlight/ohm-plugin-backlight.c
index 8950972..19c0272 100644
--- a/plugins/glue/backlight/ohm-plugin-backlight.c
+++ b/plugins/glue/backlight/ohm-plugin-backlight.c
@@ -148,17 +148,19 @@ plugin_initalize (OhmPlugin *plugin)
 
 	/* get the only device with capability and watch it */
 	num = ohm_plugin_hal_add_device_capability (plugin, "laptop_panel");
-	if (num != 1) {
+	if (num > 1) {
 		g_warning ("not tested with not one laptop_panel");
 	}
 
-	/* get levels that the adapter supports -- this does not change ever */
-	ohm_plugin_hal_get_int (plugin, 0, "laptop_panel.num_levels", &data.levels);
-	if (data.levels == 0) {
-		g_error ("levels zero!");
-		return;
+	if (num != 0) {
+		/* get levels that the adapter supports -- this does not change ever */
+		ohm_plugin_hal_get_int (plugin, 0, "laptop_panel.num_levels", &data.levels);
+		if (data.levels == 0) {
+			g_error ("levels zero!");
+			return;
+		}
+		ohm_plugin_conf_set_key (plugin, "backlight.num_levels", data.levels);
 	}
-	ohm_plugin_conf_set_key (plugin, "backlight.num_levels", data.levels);
 }
 
 /**