[svn-r4287] Purpose:hdf5-1_4_2

    Bug Fix
Description:
    H5Pset_driver had a resource leak which was dropping dataset transfer IDs
    when switching drivers.
Solution:
    Decrement dataset transfer ID reference count properly
Platforms tested:
    IRIX64 6.5 (modi4)

1 files changed, 3 insertions, 2 deletions

diff --git a/src/H5P.c b/src/H5P.c
index 5e482e3..3654c05 100644
--- a/src/H5P.c
+++ b/src/H5P.c
@@ -1710,8 +1710,9 @@ H5Pset_driver(hid_t plist_id, hid_t driver_id, const void *driver_info)
         }
 
         /* Remove old driver */
-        if (dxpl->driver_id>=0)
-            H5FD_dxpl_free(dxpl->driver_id, dxpl->driver_info);
+        assert(dxpl->driver_id>=0);
+        H5FD_dxpl_free(dxpl->driver_id, dxpl->driver_info);
+        H5I_dec_ref(dxpl->driver_id);
 
         /* Add new driver */
         H5I_inc_ref(driver_id);