From f962e3de296344e591075fae9acd624dac5dabef Mon Sep 17 00:00:00 2001
From: Victor Julien <victor@inliniac.net>
Date: Fri, 21 Sep 2012 14:17:42 +0200
Subject: [PATCH] pool: only alloc one large block if it will actually be used.

---
 src/util-pool.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/util-pool.c b/src/util-pool.c
index 23d4927a51..7e25ea58b6 100644
--- a/src/util-pool.c
+++ b/src/util-pool.c
@@ -85,6 +85,8 @@ Pool *PoolInit(uint32_t size, uint32_t prealloc_size, uint32_t elt_size,  void *
 
     if (size != 0 && prealloc_size > size)
         goto error;
+    if (size != 0 && elt_size == 0)
+        goto error;
 
     /* setup the filter */
     p = SCMalloc(sizeof(Pool));
@@ -124,10 +126,12 @@ Pool *PoolInit(uint32_t size, uint32_t prealloc_size, uint32_t elt_size,  void *
         }
     }
 
-    p->data_buffer = SCCalloc(prealloc_size, elt_size);
-    /* FIXME better goto */
-    if (p->data_buffer == NULL)
-        goto error;
+    if (size > 0) {
+        p->data_buffer = SCCalloc(prealloc_size, elt_size);
+        /* FIXME better goto */
+        if (p->data_buffer == NULL)
+            goto error;
+    }
     /* prealloc the buckets and requeue them to the alloc list */
     for (u32 = 0; u32 < prealloc_size; u32++) {
         if (size == 0) { /* unlimited */