[Xen-devel] [PATCH 14 of 22] xenpaging: catch xc_mem_paging_resume errors

[Olaf Hering <olaf@xxxxxxxxx>]

# HG changeset patch
# User Olaf Hering <olaf@xxxxxxxxx>
# Date 1307695639 -7200
# Node ID c67d7c0936969d076e30700c9a8f57080238be4e
# Parent  f26f07e19318b112b58ee370c16bee8bf5605d3f
xenpaging: catch xc_mem_paging_resume errors

In the unlikely event that xc_mem_paging_resume() fails, do not overwrite the
error with the return value from xc_evtchn_notify()

Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>

diff -r f26f07e19318 -r c67d7c093696 tools/xenpaging/xenpaging.c
--- a/tools/xenpaging/xenpaging.c       Fri Jun 10 10:47:18 2011 +0200
+++ b/tools/xenpaging/xenpaging.c       Fri Jun 10 10:47:19 2011 +0200
@@ -442,8 +442,9 @@ static int xenpaging_resume_page(xenpagi
     /* Tell Xen page is ready */
     ret = xc_mem_paging_resume(paging->xc_handle, paging->mem_event.domain_id,
                                rsp->gfn);
-    ret = xc_evtchn_notify(paging->mem_event.xce_handle,
-                           paging->mem_event.port);
+    if ( ret == 0 ) 
+        ret = xc_evtchn_notify(paging->mem_event.xce_handle,
+                               paging->mem_event.port);
 
  out:
     return ret;

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