From 1bf034d2f59572b7f67b412bdba39c5a45356780 Mon Sep 17 00:00:00 2001
From: "Bruno G. Albuquerque" <bga@bug-br.org.br>
Date: Sat, 16 May 2009 21:41:33 +0000
Subject: [PATCH] - Check if we had any changes in status before sending a
 notification for a new   inserted media. This fixes ticket #3921.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30774 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 .../kernel/disk_device_manager/KDiskDeviceManager.cpp     | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/system/kernel/disk_device_manager/KDiskDeviceManager.cpp b/src/system/kernel/disk_device_manager/KDiskDeviceManager.cpp
index 523054f1e6..2b056ef187 100644
--- a/src/system/kernel/disk_device_manager/KDiskDeviceManager.cpp
+++ b/src/system/kernel/disk_device_manager/KDiskDeviceManager.cpp
@@ -1466,9 +1466,15 @@ KDiskDeviceManager::_CheckMediaStatus()
 				continue;
 
 			bool hadMedia = device->HasMedia();
+			bool changedMedia = device->MediaChanged();
 			device->UpdateMediaStatusIfNeeded();
 
-			if (!device->MediaChanged() && (device->HasMedia() || !hadMedia))
+			// Detect it there was any status change since last check.
+			bool updated = (hadMedia != device->HasMedia()) ||
+				(changedMedia != device->MediaChanged());		
+
+			if ((!device->MediaChanged() &&
+				(device->HasMedia() || !hadMedia)) || !updated)
 				continue;
 
 			device->MarkBusy(true);