From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 3 Aug 2013 01:20:33 +0000 (-0400)
Subject: make tdestroy allow null function pointer if no destructor is needed
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=d3a98ff69a41d96d0a73f1d5b686f73a03a2f9df;p=musl

make tdestroy allow null function pointer if no destructor is needed

this change is to align with a change in the glibc interface.
---

diff --git a/src/search/tdestroy.c b/src/search/tdestroy.c
index 6f430bda..5f9e197d 100644
--- a/src/search/tdestroy.c
+++ b/src/search/tdestroy.c
@@ -16,6 +16,6 @@ void tdestroy(void *root, void (*freekey)(void *))
 		return;
 	tdestroy(r->left, freekey);
 	tdestroy(r->right, freekey);
-	freekey(r->key);
+	if (freekey) freekey(r->key);
 	free(r);
 }