target-s390: Fix cpu_clone_regs

R2 is the syscall return register, not R0.

Signed-off-by: Richard Henderson <rth@twiddle.net>

diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index dc7bbc67f6efadfe78a6a02278ffa21b6477d809..bc3fab226be5363a3c8e27b0fe059bfb3cdb7b90 100644 (file)
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -116,7 +116,7 @@ static inline void cpu_clone_regs(CPUS390XState *env, target_ulong newsp)
     if (newsp) {
         env->regs[15] = newsp;
     }
-    env->regs[0] = 0;
+    env->regs[2] = 0;
 }
 #endif