From 49dd756ee374d648beb3ecd593f419db425ef621 Mon Sep 17 00:00:00 2001
From: Brian Sumner <brian.sumner@amd.com>
Date: Sun, 22 Jan 2023 09:10:55 -0800
Subject: [PATCH] Add missing check for null pointer in free

Change-Id: Ia87df1b6c879afb0cf7021925f482577a3f025ff
---
 ockl/src/dm.cl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ockl/src/dm.cl b/ockl/src/dm.cl
index 49bbaa0..2b852f0 100644
--- a/ockl/src/dm.cl
+++ b/ockl/src/dm.cl
@@ -398,7 +398,9 @@ __ockl_dm_dealloc(ulong addr)
 {
     // Check for non-block and handle elsewhere
     if ((addr & 0xfffUL) == 0UL) {
-        non_slab_free(addr);
+        if (addr)
+            non_slab_free(addr);
+
         return;
     }