[PATCH 10/16] accel/kvm: Clarify use of @r variable in vcpu thread loop

["Philippe Mathieu-Daudé" <philmd@oss.qualcomm.com>]

@r is used for 2 distinct concepts:

- kvm_init_vcpu() returns an errno. However we don't consume
  it, besides it is called with &error_fatal. Drop the
  unused returned value.

- kvm_cpu_exec() returns an exception code. Reduce the variable
  scope and rename @r as @excp to clarify.

Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
---
 accel/kvm/kvm-accel-ops.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c
index 73ff93aab67..06f56773324 100644
--- a/accel/kvm/kvm-accel-ops.c
+++ b/accel/kvm/kvm-accel-ops.c
@@ -31,7 +31,6 @@
 static void *kvm_vcpu_thread_fn(void *arg)
 {
     CPUState *cpu = arg;
-    int r;
 
     rcu_register_thread();
 
@@ -40,7 +39,7 @@ static void *kvm_vcpu_thread_fn(void *arg)
     cpu->thread_id = qemu_get_thread_id();
     current_cpu = cpu;
 
-    r = kvm_init_vcpu(cpu, &error_fatal);
+    kvm_init_vcpu(cpu, &error_fatal);
     kvm_init_cpu_signals(cpu);
 
     /* signal CPU creation */
@@ -52,8 +51,10 @@ static void *kvm_vcpu_thread_fn(void *arg)
         qemu_process_cpu_events(cpu);
 
         if (cpu_can_run(cpu)) {
-            r = kvm_cpu_exec(cpu);
-            if (r == EXCP_DEBUG) {
+            int excp;
+
+            excp = kvm_cpu_exec(cpu);
+            if (excp == EXCP_DEBUG) {
                 cpu_handle_guest_debug(cpu);
             }
         }
-- 
2.53.0