Remove useless checks for NULL before freeing

This patch has been generated by the following Coccinelle semantic patch:
// Remove useless checks for NULL before freeing
//
// free (NULL) is a no-op, so there is no need to avoid it

@@
expression E;
@@
+ free (E);
+ E = NULL;
- if (unlikely (E != NULL)) {
-   free(E);
(
-   E = NULL;
|
-   E = 0;
)
   ...
- }

@@
expression E;
@@
+ free (E);
- if (unlikely (E != NULL)) {
-   free (E);
- }

1 files changed, 2 insertions, 4 deletions

diff --git a/src/cairo-directfb-surface.c b/src/cairo-directfb-surface.c
index c46f5874e..46c096082 100644
--- a/src/cairo-directfb-surface.c
+++ b/src/cairo-directfb-surface.c
@@ -1711,10 +1711,8 @@ _cairo_directfb_surface_scaled_glyph_fini (cairo_scaled_glyph_t *scaled_glyph,
                  "%s( scaled_glyph=%p, scaled_font=%p ).\n",
                  __FUNCTION__, scaled_glyph, scaled_font);
 
-     if (scaled_glyph->surface_private != NULL) {
-          free (scaled_glyph->surface_private);
-          scaled_glyph->surface_private = NULL;
-     }
+     free (scaled_glyph->surface_private);
+     scaled_glyph->surface_private = NULL;
 }
 
 static cairo_int_status_t