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-misc.c b/src/cairo-misc.c
index c04fe112..27c264b5 100644
--- a/src/cairo-misc.c
+++ b/src/cairo-misc.c
@@ -207,8 +207,7 @@ slim_hidden_def (cairo_glyph_allocate);
 void
 cairo_glyph_free (cairo_glyph_t *glyphs)
 {
-    if (glyphs)
-	free (glyphs);
+    free (glyphs);
 }
 slim_hidden_def (cairo_glyph_free);
 
@@ -258,8 +257,7 @@ slim_hidden_def (cairo_text_cluster_allocate);
 void
 cairo_text_cluster_free (cairo_text_cluster_t *clusters)
 {
-    if (clusters)
-	free (clusters);
+    free (clusters);
 }
 slim_hidden_def (cairo_text_cluster_free);