From 29da47be60b0373ff93769f9f373a20b15a01e0f Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 21 Oct 2008 10:42:41 +0100
Subject: [PATCH] [ps] Check for an empty font subset.

Return early before trying to emit an empty subset into the document -
avoids a potential use of an uninitialised status variable.
---
 src/cairo-ps-surface.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cairo-ps-surface.c b/src/cairo-ps-surface.c
index 3a0e982af..816f0eae5 100644
--- a/src/cairo-ps-surface.c
+++ b/src/cairo-ps-surface.c
@@ -480,6 +480,9 @@ _cairo_ps_surface_emit_type3_font_subset (cairo_ps_surface_t		*surface,
     cairo_surface_t *type3_surface;
     double width;
 
+    if (font_subset->num_glyphs == 0)
+	return CAIRO_STATUS_SUCCESS;
+
 #if DEBUG_PS
     _cairo_output_stream_printf (surface->final_stream,
 				 "%% _cairo_ps_surface_emit_type3_font_subset\n");