[Xen-devel] [PATCH] mini-os: Fix xenbus_switch_state's transaction retry

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

mini-os: Fix xenbus_switch_state's transaction retry

When xenbus_switch_state has to retry the transaction which it just
created, it needs to recreate another one.  Clearing xbt triggers it.

Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

diff -r adce8bc43fcc extras/mini-os/xenbus/xenbus.c
--- a/extras/mini-os/xenbus/xenbus.c    Tue Apr 06 07:16:47 2010 +0100
+++ b/extras/mini-os/xenbus/xenbus.c    Wed Apr 07 01:44:16 2010 +0200
@@ -154,8 +154,10 @@ char *xenbus_switch_state(xenbus_transac
         msg = xenbus_write(xbt, path, value);
 
 exit:
-        if (xbt_flag)
+        if (xbt_flag) {
             msg2 = xenbus_transaction_end(xbt, 0, &retry);
+            xbt = XBT_NIL;
+        }
         if (msg == NULL && msg2 != NULL)
             msg = msg2;
     } while (retry);

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