[Xen-devel] [PATCH 4/6] libxc: allow for ctxt to be NULL in xc_vcpu_setcontext

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

Since, as can be seen in xen/common/domctl.c, that is legitimate.
Actually, it is the only way to have vcpu_reset() invoked from
outside Xen.

Signed-off-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
Cc: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
Cc: Jan Beulich <JBeulich@xxxxxxxx>
Cc: Keir Fraser <keir@xxxxxxx>
---
 tools/libxc/xc_domain.c |    6 ------
 1 file changed, 6 deletions(-)

diff --git a/tools/libxc/xc_domain.c b/tools/libxc/xc_domain.c
index d64d0bc..a247426 100644
--- a/tools/libxc/xc_domain.c
+++ b/tools/libxc/xc_domain.c
@@ -1140,12 +1140,6 @@ int xc_vcpu_setcontext(xc_interface *xch,
     DECLARE_HYPERCALL_BOUNCE(ctxt, sizeof(vcpu_guest_context_any_t), 
XC_HYPERCALL_BUFFER_BOUNCE_IN);
     int rc;
 
-    if (ctxt == NULL)
-    {
-        errno = EINVAL;
-        return -1;
-    }
-
     if ( xc_hypercall_bounce_pre(xch, ctxt) )
         return -1;
 


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