[Qemu-ppc] [PATCH qemu] xics-kvm: Fix compile warning

[Alexey Kardashevskiy]

This fixes uninitialized variable warning:

/home/aik/p/qemu/hw/intc/xics_kvm.c: In function ‘ics_set_kvm_state’:
/home/aik/p/qemu/hw/intc/xics_kvm.c:281:20: warning: ‘ret’ may be used 
uninitialized in this function [-Wmaybe-uninitialized]
             return ret;
                    ^~~

Discovered with gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0 from Ubuntu 18.04.

Fixes: bf358b541b8 "xics_kvm: use KVM helpers"
Signed-off-by: Alexey Kardashevskiy <address@hidden>
---
 hw/intc/xics_kvm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
index 8bdf6af..48efbce 100644
--- a/hw/intc/xics_kvm.c
+++ b/hw/intc/xics_kvm.c
@@ -273,8 +273,8 @@ static int ics_set_kvm_state(ICSState *ics, int version_id)
                 state |= KVM_XICS_QUEUED;
         }
 
-        kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES,
-                          i + ics->offset, &state, true, &local_err);
+        ret = kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES,
+                                i + ics->offset, &state, true, &local_err);
         if (local_err) {
             error_report("Unable to restore KVM interrupt controller state"
                     " for IRQs %d: %s", i + ics->offset, strerror(errno));
-- 
2.11.0