[Xen-changelog] [xen stable-4.7] tools/libxenctrl: fix error check after opening libxenforeignmemory

[patchbot@xxxxxxx]

commit b5c7deaaf214ba94f46680fd289083938974ca82
Author:     Paul Durrant <paul.durrant@xxxxxxxxxx>
AuthorDate: Wed Feb 22 13:27:34 2017 +0000
Commit:     Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
CommitDate: Wed Apr 5 14:24:49 2017 +0100

    tools/libxenctrl: fix error check after opening libxenforeignmemory
    
    Checking the value of xch->xcall is clearly incorrect. The code should be
    checking xch->fmem (i.e. the return of the previously called function).
    
    Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
    (cherry picked from commit 80a7d04f532ddc3500acd7988917708a536ae15f)
    (cherry picked from commit e0354e65fec21a51e573bf82ef930cb97ed11c96)
---
 tools/libxc/xc_private.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/libxc/xc_private.c b/tools/libxc/xc_private.c
index d57c39a..9ba4b73 100644
--- a/tools/libxc/xc_private.c
+++ b/tools/libxc/xc_private.c
@@ -64,8 +64,7 @@ struct xc_interface_core *xc_interface_open(xentoollog_logger 
*logger,
         goto err;
 
     xch->fmem = xenforeignmemory_open(xch->error_handler, 0);
-
-    if ( xch->xcall == NULL )
+    if ( xch->fmem == NULL )
         goto err;
 
     return xch;
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.7

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