sparc64: Fix wrong syscall return value passed to trace_sys_exit()

Syscall number is passed instead of return value. Fix that.
Signed-off-by: NKirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/kernel/ptrace_64.c

@@ -1087,7 +1087,7 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
-		trace_sys_exit(regs, regs->u_regs[UREG_G1]);
+		trace_sys_exit(regs, regs->u_regs[UREG_I0]);
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);