[cairo-commit] src/cairo-xlib-surface-shm.c

[Chris Wilson]

 src/cairo-xlib-surface-shm.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

New commits:
commit e4acba6d1ddfe1c6d27b5a77edccea9d69b178f8
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Jan 8 16:38:11 2013 +0000

    xlib/shm: Only destroy an existing damage
    
    _cairo_damage_destroy() does not like to be passed a NULL.
    
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

diff --git a/src/cairo-xlib-surface-shm.c b/src/cairo-xlib-surface-shm.c
index ff0aaf8..d27b2d6 100644
--- a/src/cairo-xlib-surface-shm.c
+++ b/src/cairo-xlib-surface-shm.c
@@ -710,8 +710,10 @@ _cairo_xlib_shm_surface_finish (void *abstract_surface)
     cairo_xlib_display_t *display;
     cairo_status_t status;
 
-    _cairo_damage_destroy (shm->image.base.damage);
-    shm->image.base.damage = _cairo_damage_create_in_error (CAIRO_STATUS_SURFACE_FINISHED);
+    if (shm->image.base.damage) {
+	_cairo_damage_destroy (shm->image.base.damage);
+	shm->image.base.damage = _cairo_damage_create_in_error (CAIRO_STATUS_SURFACE_FINISHED);
+    }
 
     status = _cairo_xlib_display_acquire (shm->image.base.device, &display);
     if (unlikely (status))