[ofw] IBBUS - keep last HCA reference until IBAL is shutdown.

[Smith, Stan]

Hello,
  Keep the last ibbus HCA IF reference until IBAL is shutdown; al_cleanup() completes. The idea is that IBAL needs the HCA to stick around until it's done cleaning up. Not good to have the last HCA disappear out from underneath.
The code is wrong in svn, ic == 1 at this juncture, ic does not go to zero until free_bfi() called later.

I will commit upon your approval.

Thanks,

Stan.

Signed off by stan.smith at intel.com

diff U3 C:/Documents and Settings/scsmith/Local Settings/Temp/bus_pnp-revBASE.svn002.tmp.c C:/Documents and Settings/scsmith/My Documents/openIB-windows/SVN/gen1/trunk/core/bus/kernel/bus_pnp.c
--- C:/Documents and Settings/scsmith/Local Settings/Temp/bus_pnp-revBASE.svn002.tmp.c  Mon May 18 14:22:55 2009
+++ C:/Documents and Settings/scsmith/My Documents/openIB-windows/SVN/gen1/trunk/core/bus/kernel/bus_pnp.c      Mon May 18 14:27:00 2009
@@ -576,7 +576,7 @@
                p_ext->p_iou_mgr = NULL;
        }

-       if ( ic > 0 && p_ext->hca_ifc_taken ) {
+       if ( ic > 1 && p_ext->hca_ifc_taken ) {
                p_ext->hca_ifc.InterfaceHeader.InterfaceDereference(
                        p_ext->hca_ifc.InterfaceHeader.Context);
                p_ext->hca_ifc_taken = FALSE;
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