Update the remaining backends to handle a NULL extents for _cairo_surface_get_source

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 5 insertions, 3 deletions

diff --git a/src/cairo-image-surface.c b/src/cairo-image-surface.c
index 56914b06b..98f70c585 100644
--- a/src/cairo-image-surface.c
+++ b/src/cairo-image-surface.c
@@ -859,9 +859,11 @@ _cairo_image_surface_source (void			*abstract_surface,
 {
     cairo_image_surface_t *surface = abstract_surface;
 
-    extents->x = extents->y = 0;
-    extents->width = surface->width;
-    extents->height = surface->height;
+    if (extents) {
+	extents->x = extents->y = 0;
+	extents->width = surface->width;
+	extents->height = surface->height;
+    }
 
     return &surface->base;
 }