[gnome-settings-daemon] power: Simplify mock brightness code

[Bastien Nocera <hadess src gnome org>]

commit 080f1483b49c594f96d72a90671e7ba3abfef01c
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Apr 16 15:28:55 2013 +0200

    power: Simplify mock brightness code

 plugins/power/gpm-common.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)
---
diff --git a/plugins/power/gpm-common.c b/plugins/power/gpm-common.c
index e004901..ec8b778 100644
--- a/plugins/power/gpm-common.c
+++ b/plugins/power/gpm-common.c
@@ -1186,19 +1186,21 @@ backlight_set_mock_value (gint value)
 {
        const char *filename;
        char *contents;
+       GError *error = NULL;
 
-       g_debug ("Settings mock brightness: %d", value);
+       g_debug ("Setting mock brightness: %d", value);
 
        filename = "GSD_MOCK_brightness";
        contents = g_strdup_printf ("%d", value);
-       g_file_set_contents (filename, contents, -1, NULL);
+       if (!g_file_set_contents (filename, contents, -1, NULL))
+               g_warning ("Setting mock brightness failed: %s", error->message);
+       g_clear_error (&error);
        g_free (contents);
 }
 
 static gint64
 backlight_get_mock_value (const char *argument)
 {
-       const char *filename;
        char *contents;
        gint64 ret;
 
@@ -1207,14 +1209,9 @@ backlight_get_mock_value (const char *argument)
                return GSD_MOCK_MAX_BRIGHTNESS;
        }
 
-       if (g_str_equal (argument, "get-brightness")) {
-               filename = "GSD_MOCK_brightness";
-               ret = GSD_MOCK_DEFAULT_BRIGHTNESS;
-       } else {
-               g_assert_not_reached ();
-       }
+       g_assert (g_str_equal (argument, "get-brightness"));
 
-       if (g_file_get_contents (filename, &contents, NULL, NULL)) {
+       if (g_file_get_contents ("GSD_MOCK_brightness", &contents, NULL, NULL)) {
                ret = g_ascii_strtoll (contents, NULL, 0);
                g_free (contents);
                g_debug ("Returning mock brightness: %"G_GINT64_FORMAT, ret);