From 9938d9a5d31dba215f9a4cd623b145f12b4ecd2c Mon Sep 17 00:00:00 2001
From: Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
Date: Thu, 7 Aug 2014 12:19:07 +0200
Subject: Prevent overwriting unit definition

---
 src/uca-camera.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/uca-camera.c')

diff --git a/src/uca-camera.c b/src/uca-camera.c
index cbc0e90..ae8fea9 100644
--- a/src/uca-camera.c
+++ b/src/uca-camera.c
@@ -135,7 +135,10 @@ struct _UcaCameraPrivate {
 static void
 uca_camera_set_property_unit (GParamSpec *pspec, UcaUnit unit)
 {
-    g_param_spec_set_qdata (pspec, UCA_UNIT_QUARK, GINT_TO_POINTER (unit));
+    if (g_param_spec_get_qdata (pspec, UCA_UNIT_QUARK) != NULL)
+        g_warning ("::%s already has a unit", pspec->name);
+    else
+        g_param_spec_set_qdata (pspec, UCA_UNIT_QUARK, GINT_TO_POINTER (unit));
 }
 
 static void
-- 
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