[Xen-changelog] Fix tpm split driver to follow changes in the xenbus API.

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID c89485e939cccb4c74af334b33fcca9e21ad13b2
# Parent  b2928ee8ddcd0ee7d27c5b85955cfb12f2ec79b3
Fix tpm split driver to follow changes in the xenbus API.

Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>

diff -r b2928ee8ddcd -r c89485e939cc 
linux-2.6-xen-sparse/drivers/xen/tpmback/xenbus.c
--- a/linux-2.6-xen-sparse/drivers/xen/tpmback/xenbus.c Fri Sep 23 19:10:32 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/tpmback/xenbus.c Sat Sep 24 07:58:41 2005
@@ -93,7 +93,8 @@
         * Tell the front-end that we are ready to go -
         * unless something bad happens
         */
-       err = xenbus_transaction_start(be->dev->nodename);
+again:
+       err = xenbus_transaction_start();
        if (err) {
                xenbus_dev_error(be->dev, err, "starting transaction");
                return;
@@ -127,7 +128,14 @@
                goto abort;
        }
 
-       xenbus_transaction_end(0);
+       err = xenbus_transaction_end(0);
+       if (err == EAGAIN)
+               goto again;
+       if (err) {
+               xenbus_dev_error(be->dev, err, "end of transaction");
+               goto abort;
+       }
+
        xenbus_dev_ok(be->dev);
        return;
 abort:
diff -r b2928ee8ddcd -r c89485e939cc 
linux-2.6-xen-sparse/drivers/xen/tpmfront/tpmfront.c
--- a/linux-2.6-xen-sparse/drivers/xen/tpmfront/tpmfront.c      Fri Sep 23 
19:10:32 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/tpmfront/tpmfront.c      Sat Sep 24 
07:58:41 2005
@@ -331,7 +331,8 @@
                goto out;
        }
 
-       err = xenbus_transaction_start(dev->nodename);
+again:
+       err = xenbus_transaction_start();
        if (err) {
                xenbus_dev_error(dev, err, "starting transaction");
                goto destroy_tpmring;
@@ -363,6 +364,8 @@
        }
 
        err = xenbus_transaction_end(0);
+       if (err == EAGAIN)
+               goto again;
        if (err) {
                xenbus_dev_error(dev, err, "completing transaction");
                goto destroy_tpmring;

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