diff --git a/drivers/staging/android/fiq_debugger/fiq_debugger_arm64.c b/drivers/staging/android/fiq_debugger/fiq_debugger_arm64.c
index af4251c07de6..7d1ca391054f 100644
--- a/drivers/staging/android/fiq_debugger/fiq_debugger_arm64.c
+++ b/drivers/staging/android/fiq_debugger/fiq_debugger_arm64.c
@@ -191,6 +191,7 @@ void fiq_debugger_dump_stacktrace(struct fiq_debugger_output *output,
 		struct stackframe frame;
 		frame.fp = regs->regs[29];
 		frame.pc = regs->pc;
+		frame.prev_type = STACK_TYPE_UNKNOWN;
 		output->printf(output, "\n");
 		walk_stackframe(current, &frame, report_trace, &sts);
 	}