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[Xen-changelog] [xen stable-4.5] common/memory: fix an XSM error path



commit 2fdd521e4801bfb45ba0e88ca820a8606aa5e1b7
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Feb 3 12:15:58 2015 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Feb 3 12:15:58 2015 +0100

    common/memory: fix an XSM error path
    
    XENMEM_{in,de}crease_reservation as well as XENMEM_populate_physmap
    return the extent at which failure was detected, not error indicators.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
    Acked-by: Tim Deegan <tim@xxxxxxx>
    master commit: 76d4ff26d9647088353acaf4a56388a354a5d6e9
    master date: 2015-01-19 11:59:05 +0100
---
 xen/common/memory.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/xen/common/memory.c b/xen/common/memory.c
index 234dae6..e84ace9 100644
--- a/xen/common/memory.c
+++ b/xen/common/memory.c
@@ -747,11 +747,10 @@ long do_memory_op(unsigned long cmd, 
XEN_GUEST_HANDLE_PARAM(void) arg)
             return start_extent;
         args.domain = d;
 
-        rc = xsm_memory_adjust_reservation(XSM_TARGET, current->domain, d);
-        if ( rc )
+        if ( xsm_memory_adjust_reservation(XSM_TARGET, current->domain, d) )
         {
             rcu_unlock_domain(d);
-            return rc;
+            return start_extent;
         }
 
         switch ( op )
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.5

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