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/src/cairo-xcb-connection-core.c b/src/cairo-xcb-connection-core.c
index 5a2000470..fe86876e7 100644
--- a/src/cairo-xcb-connection-core.c
+++ b/src/cairo-xcb-connection-core.c
@@ -262,8 +262,7 @@ _cairo_xcb_connection_get_image (cairo_xcb_connection_t *connection,
     if (error) {
 	free (error);
 
-	if (*reply)
-	    free (*reply);
+	free (*reply);
 	*reply = NULL;
     }