[rtems commit] libdl: Add a comment to the previous fix.

[Chris Johns]

Module:    rtems
Branch:    master
Commit:    80590a8ecffbe3d61a28ccb64d2dc04a0612e52b
Changeset: http://git.rtems.org/rtems/commit/?id=80590a8ecffbe3d61a28ccb64d2dc04a0612e52b

Author:    Chris Johns <chrisj at rtems.org>
Date:      Thu Nov 20 08:38:28 2014 +1100

libdl: Add a comment to the previous fix.

The fix is ref #2191.

---

 cpukit/libdl/rtl-allocator.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cpukit/libdl/rtl-allocator.c b/cpukit/libdl/rtl-allocator.c
index 26044c2..ced19d0 100644
--- a/cpukit/libdl/rtl-allocator.c
+++ b/cpukit/libdl/rtl-allocator.c
@@ -61,6 +61,9 @@ rtems_rtl_alloc_new (rtems_rtl_alloc_tag_t tag, size_t size, bool zero)
     printf ("rtl: alloc: new: %s addr=%p size=%zu\n",
             rtems_rtl_trace_tag_label (tag), address, size);
 
+  /*
+   * Only zero the memory if asked to and the allocation was successful.
+   */
   if (address && zero)
     memset (address, 0, size);