From 51eb6a30cdd9bc1f8e3e6bfcfca87e22eafbf6fc Mon Sep 17 00:00:00 2001
From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Wed, 6 Jun 2012 14:07:46 +0000
Subject: [PATCH] Mem_Realloc: allow the pool to be NULL in which case the
 block's previous pool is used

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11825 d7cf8633-e32d-0410-b094-e92efae38249
---
 zone.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/zone.c b/zone.c
index 2f756d0e..16386369 100644
--- a/zone.c
+++ b/zone.c
@@ -382,7 +382,12 @@ void *_Mem_Alloc(mempool_t *pool, void *olddata, size_t size, size_t alignment,
 		return NULL;
 	}
 	if (pool == NULL)
-		Sys_Error("Mem_Alloc: pool == NULL (alloc at %s:%i)", filename, fileline);
+	{
+		if(olddata)
+			pool = ((memheader_t *)((unsigned char *) olddata - sizeof(memheader_t)))->pool;
+		else
+			Sys_Error("Mem_Alloc: pool == NULL (alloc at %s:%i)", filename, fileline);
+	}
 	if (mem_mutex)
 		Thread_LockMutex(mem_mutex);
 	if (developer_memory.integer)
-- 
2.39.2