Handle NULL fb_ptr in pixmap_get_fb

This can happen when HW acceleration is disabled.

Fixes https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati/issues/188

1 files changed, 1 insertions, 1 deletions

diff --git a/src/radeon.h b/src/radeon.h
index 2c913466..8e964805 100644
--- a/src/radeon.h
+++ b/src/radeon.h
@@ -896,7 +896,7 @@ radeon_pixmap_get_fb(PixmapPtr pix)
 				   handle);
     }
 
-    return *fb_ptr;
+    return fb_ptr ? *fb_ptr : NULL;
 }