From 440bb68ef207b9101f355b2d1ccbaa5d1b166c4a Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Mon, 13 Mar 2006 12:30:00 -0800
Subject: [PATCH] _clip_and_composite_trapezoids: Avoid NULL pointer
 dereference due to OOM.

This closes bug #6197:

	Null pointer dereference on OOM in _clip_and_composite_trapezoids()
	https://bugs.freedesktop.org/show_bug.cgi?id=6197
(cherry picked from 6f0d8eedc504e8af2224c502be25dc82b5df70f4 commit)
---
 src/cairo-gstate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cairo-gstate.c b/src/cairo-gstate.c
index 398323395..67c6875c9 100644
--- a/src/cairo-gstate.c
+++ b/src/cairo-gstate.c
@@ -1439,6 +1439,9 @@ _cairo_surface_clip_and_composite_trapezoids (cairo_pattern_t *src,
 		return status;
 	    
 	    clear_region = _cairo_region_create_from_rectangle (&extents);
+	    if (clear_region == NULL)
+		return CAIRO_STATUS_NO_MEMORY;
+
 	    status = _cairo_clip_intersect_to_region (clip, clear_region);
 	    if (status)
 		return status;