src/patches/suse-2.6.27.25/patches.xen/782-netback-error-handling.patch

   1 From: http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/51decc39e5e7
   2 # HG changeset 782 patch
   3 # User Keir Fraser <keir.fraser@citrix.com>
   4 # Date 1233150129 0
   5 # Node ID 51decc39e5e73ea201d0b96108f8a893106a6864
   6 # Parent  c9783c08495c56337dec371582b3f948e3b5ed8d
   7 Subject: linux/netback: unmap tx ring gref when mapping of rx ring gref failed
   8 Patch-mainline: obsolete
   9
  10 Signed-off-by: Jan Beulich <jbeulich@novell.com>
  11
  12 --- head-2009-02-02.orig/drivers/xen/netback/interface.c        2009-02-02 09:28:02.000000000 +0100
  13 +++ head-2009-02-02/drivers/xen/netback/interface.c     2009-02-02 09:40:43.000000000 +0100
  14 @@ -219,6 +219,13 @@ static int map_frontend_pages(
  15                 BUG();
  16
  17         if (op.status) {
  18 +               struct gnttab_unmap_grant_ref unop;
  19 +
  20 +               gnttab_set_unmap_op(&unop,
  21 +                                   (unsigned long)netif->tx_comms_area->addr,
  22 +                                   GNTMAP_host_map, netif->tx_shmem_handle);
  23 +               VOID(HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref,
  24 +                                              &unop, 1));
  25                 DPRINTK(" Gnttab failure mapping rx_ring_ref!\n");
  26                 return op.status;
  27         }