From 7df531486c17d79b196d39fd75cc44f30207c531 Mon Sep 17 00:00:00 2001
From: "Robert E. McGrath" <mcgrath@ncsa.uiuc.edu>
Date: Fri, 4 Feb 2005 12:21:29 -0500
Subject: [svn-r9936] Purpose: Bug fix

Description:
Assertion fails when attempt to open non-hdf5 file.

Solution:
No need to call the decrement when the object is null.

Platforms tested:
verbena, shanti

Misc. update:
---
 src/H5Gnode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/H5Gnode.c b/src/H5Gnode.c
index 1f2e94f..9eeabc7 100644
--- a/src/H5Gnode.c
+++ b/src/H5Gnode.c
@@ -1796,7 +1796,8 @@ H5G_node_close(const H5F_t *f)
     assert(f);
 
     /* Free the raw B-tree node buffer */
-    H5RC_DEC(H5F_GRP_BTREE_SHARED(f));
+    if (H5F_GRP_BTREE_SHARED(f))
+        H5RC_DEC(H5F_GRP_BTREE_SHARED(f));
 
     FUNC_LEAVE_NOAPI(SUCCEED);
 } /* end H5G_node_close */
-- 
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