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, 1 insertions, 2 deletions

diff --git a/util/cairo-trace/lookup-symbol.c b/util/cairo-trace/lookup-symbol.c
index eb1a656dd..f9665b36f 100644
--- a/util/cairo-trace/lookup-symbol.c
+++ b/util/cairo-trace/lookup-symbol.c
@@ -85,8 +85,7 @@ struct symbol {
 static void
 _symtab_fini (struct symtab *symtab)
 {
-    if (symtab->syms != NULL)
-	free (symtab->syms);
+    free (symtab->syms);
     if (symtab->bfd != NULL)
 	bfd_close (symtab->bfd);
 }