[gnome-settings-daemon] wacom: Micro-optimise sending modifiers

[Bastien Nocera <hadess src gnome org>]

commit 795db1b0deaea2188b282d8b03f81aa1439d6621
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Feb 23 14:40:03 2012 +0100

    wacom: Micro-optimise sending modifiers

 plugins/wacom/gsd-wacom-manager.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/plugins/wacom/gsd-wacom-manager.c b/plugins/wacom/gsd-wacom-manager.c
index 56636e1..efa062b 100644
--- a/plugins/wacom/gsd-wacom-manager.c
+++ b/plugins/wacom/gsd-wacom-manager.c
@@ -702,6 +702,9 @@ send_modifiers (Display *display,
 {
 	guint i;
 
+	if (mask == 0)
+		return;
+
 	for (i = 0; i < G_N_ELEMENTS(mods_keysyms); i++) {
 		if (mask & mods_keysyms[i].mask) {
 			guint keycode;