From 86aeeb0a31205e4fe923de77df870022ea85f730 Mon Sep 17 00:00:00 2001
From: uweseimet <48174652+uweseimet@users.noreply.github.com>
Date: Wed, 23 Jun 2021 19:16:27 +0200
Subject: [PATCH] Segmentation fault fix for missing unit 0 (#115)

* Removed unused code, added some translations

* Fixed segmentation fault when there is no unit 0

* Removed unrelated changes
---
 src/raspberrypi/controllers/scsidev_ctrl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/raspberrypi/controllers/scsidev_ctrl.cpp b/src/raspberrypi/controllers/scsidev_ctrl.cpp
index d4bd2e43..b2557fea 100644
--- a/src/raspberrypi/controllers/scsidev_ctrl.cpp
+++ b/src/raspberrypi/controllers/scsidev_ctrl.cpp
@@ -1517,7 +1517,7 @@ void FASTCALL SCSIDEV::Send()
 		// The Daynaport needs to have a delay after the size/flags field
 		// of the read response. In the MacOS driver, it looks like the
 		// driver is doing two "READ" system calls.
-		if (ctrl.unit[0]->GetID() == MAKEID('S', 'C', 'D', 'P')) {
+		if (ctrl.unit[0] && ctrl.unit[0]->GetID() == MAKEID('S', 'C', 'D', 'P')) {
 			len = ((GPIOBUS*)ctrl.bus)->SendHandShake(
 				&ctrl.buffer[ctrl.offset], ctrl.length, SCSIDaynaPort::DAYNAPORT_READ_HEADER_SZ);
 		}