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[Xen-changelog] [xen-4.0-testing] sysctl: Fix XEN_SYSCTL_debug_keys erro

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Subject: [Xen-changelog] [xen-4.0-testing] sysctl: Fix XEN_SYSCTL_debug_keys error path.
From: "Xen patchbot-4.0-testing" <patchbot-4.0-testing@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 16 Apr 2010 09:50:12 -0700
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1271355425 -3600
# Node ID 8a96f37e9826e8fd085fe27c04076b074a5453f1
# Parent  11010cf627c874fafcea2fff4dfa697658cdbeeb
sysctl: Fix XEN_SYSCTL_debug_keys error path.

Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
xen-unstable changeset:   21160:859a372efa66
xen-unstable date:        Tue Apr 13 13:40:58 2010 +0100
---
 xen/common/sysctl.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletion(-)

diff -r 11010cf627c8 -r 8a96f37e9826 xen/common/sysctl.c
--- a/xen/common/sysctl.c       Mon Apr 12 18:29:36 2010 +0100
+++ b/xen/common/sysctl.c       Thu Apr 15 19:17:05 2010 +0100
@@ -169,12 +169,14 @@ long do_sysctl(XEN_GUEST_HANDLE(xen_sysc
         if ( ret )
             break;
 
+        ret = -EFAULT;
         for ( i = 0; i < op->u.debug_keys.nr_keys; i++ )
         {
             if ( copy_from_guest_offset(&c, op->u.debug_keys.keys, i, 1) )
-                return -EFAULT;
+                goto out;
             handle_keypress(c, guest_cpu_user_regs());
         }
+        ret = 0;
     }
     break;
 

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