Bug 1074004 - Bustage fix for nestegg_set_halloc_func.

--HG--
extra : rebase_source : 7e24e953dc287e80112e0a0d4263b6ac5b1fbd8d

media/libnestegg/README_MOZILLA

@@ -5,4 +5,4 @@ Makefile.in build files for the Mozilla build system.
 
 The nestegg git repository is: git://github.com/kinetiknz/nestegg.git
 
-The git commit ID used was 2f596487949b192fb15866c6f8ecc6b04df92cb8.
+The git commit ID used was ec23378e70030bacf3b4905c444c38ef4a37bceb.

media/libnestegg/src/halloc.c

@@ -40,10 +40,8 @@ typedef struct hblock
  *
  */
 realloc_t halloc_allocator = NULL;
-realloc_t halloc_wrapped_allocator = NULL;
 
 #define allocator halloc_allocator
-#define wrapped_allocator halloc_wrapped_allocator
 
 /*
  *	static methods
@@ -64,7 +62,10 @@ void * halloc(void * ptr, size_t len)
 	/* set up default allocator */
 	if (! allocator)
 	{
-		halloc_set_allocator(realloc);
+		if (halloc_set_allocator(realloc) == 0)
+		{
+			halloc_set_allocator(_realloc);
+		}
 		assert(allocator);
 	}
 
@@ -189,7 +190,6 @@ int halloc_set_allocator(realloc_t realloc_func)
 	 *
 	 *	Thanks to Stan Tobias for pointing this tricky part out.
 	 */
-	allocator = realloc_func;
 	if (! (p = malloc(1)))
 		/* hmm */
 		return -1;
@@ -197,11 +197,10 @@ int halloc_set_allocator(realloc_t realloc_func)
 	if ((p = realloc_func(p, 0)))
 	{
 		/* realloc_func cannot be used as free() */
-		allocator = _realloc;
-		wrapped_allocator = realloc_func;
 		free(p);
 		return 0;
 	}
+	allocator = realloc_func;
 	return 1;
 }
 
@@ -211,7 +210,7 @@ static void * _realloc(void * ptr, size_t n)
 	 *	free'ing realloc()
 	 */
 	if (n)
-		return wrapped_allocator(ptr, n);
+		return realloc(ptr, n);
 	free(ptr);
 	return NULL;
 }