From 9d0d78a64363721a72f37b30303a4006b1d532e5 Mon Sep 17 00:00:00 2001
From: Uwe Seimet <48174652+uweseimet@users.noreply.github.com>
Date: Sun, 6 Feb 2022 20:44:28 +0100
Subject: [PATCH] Flush the cache on STOP UNIT (#644)

---
 src/raspberrypi/devices/disk.cpp | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/src/raspberrypi/devices/disk.cpp b/src/raspberrypi/devices/disk.cpp
index ac3de0eb..d540ffc4 100644
--- a/src/raspberrypi/devices/disk.cpp
+++ b/src/raspberrypi/devices/disk.cpp
@@ -1293,16 +1293,21 @@ bool Disk::StartStop(const DWORD *cdb)
 		SetStopped(!start);
 	}
 
-	// Look at the eject bit and eject if necessary
-	if (load && !start) {
-		if (IsLocked()) {
-			// Cannot be ejected because it is locked
-			SetStatusCode(STATUS_PREVENT);
-			return false;
-		}
+	if (!start) {
+		// Flush the cache when stopping
+		disk.dcache->Save();
 
-		// Eject
-		return Eject(false);
+		// Look at the eject bit and eject if necessary
+		if (load) {
+			if (IsLocked()) {
+				// Cannot be ejected because it is locked
+				SetStatusCode(STATUS_PREVENT);
+				return false;
+			}
+
+			// Eject
+			return Eject(false);
+		}
 	}
 
 	return true;