assign NULL to free pointer

Signed-off-by: Peng Fan <van.freenix@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/rtl-alloc-heap.c b/rtl-alloc-heap.c
index 1f3c8dd..44a4816 100644
--- a/rtl-alloc-heap.c
+++ b/rtl-alloc-heap.c
@@ -26,5 +26,8 @@ rtems_rtl_alloc_heap (bool                  allocate,
   if (allocate)
     *address = malloc (size);
   else
+  {
     free (*address);
+    *address = NULL;
+  }
 }