X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fgtksheet%2Fgsheetmodel.c;h=26a6be62cc9a4f47cd9002ce02fde5e43f7f4f78;hb=ab6b44d5459bb58c89124f49fd65be635273d390;hp=e200b300fa3f38adb60599f4cc840cc97dc22d43;hpb=82a1c1132557cfec30525068d873f97f56dbcab0;p=pspp

diff --git a/lib/gtksheet/gsheetmodel.c b/lib/gtksheet/gsheetmodel.c
index e200b300fa..26a6be62cc 100644
--- a/lib/gtksheet/gsheetmodel.c
+++ b/lib/gtksheet/gsheetmodel.c
@@ -464,6 +464,7 @@ g_sheet_model_get_column_subtitle (const GSheetModel *model,
 				   gint col)
 {
   g_return_val_if_fail (G_IS_SHEET_MODEL (model), NULL);
+  g_return_val_if_fail (col >= 0, NULL);
 
   if ( NULL == G_SHEET_MODEL_GET_IFACE (model)->get_column_subtitle)
     return NULL;