tdehw lib: fixed detection of mountable optical disks with incomplete

partition table.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 99b855062b)

tdecore/tdehw/tdehardwaredevices.cpp

@@ -2699,7 +2699,8 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 				diskstatus = diskstatus | TDEDiskDeviceStatus::Hotpluggable;
 			}
 
-			if ((filesystemtype.upper() != "CRYPTO_LUKS") && (filesystemtype.upper() != "CRYPTO") && (filesystemtype.upper() != "SWAP") && (!filesystemtype.isEmpty())) {
+			if ((!filesystemtype.isEmpty()) && (filesystemtype.upper() != "CRYPTO_LUKS") &&
+			    (filesystemtype.upper() != "CRYPTO") && (filesystemtype.upper() != "SWAP")) {
 				diskstatus = diskstatus | TDEDiskDeviceStatus::ContainsFilesystem;
 			}
 			else {
@@ -2724,11 +2725,12 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice* exist
 				diskstatus = diskstatus & ~TDEDiskDeviceStatus::Mountable;
 			}
 			// Partition tables cannot be mounted
-			if ((TQString(udev_device_get_property_value(dev, "ID_PART_TABLE_TYPE")) != "")
-			    && ((TQString(udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")).isEmpty())
-				|| (TQString(udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")) == "0x5")
-				|| (TQString(udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")) == "0xf")
-				|| (TQString(udev_device_get_property_value(dev, "ID_FS_USAGE")).upper() == "RAID"))) {
+			if ((!TQString(udev_device_get_property_value(dev, "ID_PART_TABLE_TYPE")).isEmpty()) &&
+			    ((TQString(udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")).isEmpty() &&
+			    !(diskstatus & TDEDiskDeviceStatus::ContainsFilesystem)) ||
+			    (TQString(udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")) == "0x5") ||
+			    (TQString(udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")) == "0xf") ||
+			    (TQString(udev_device_get_property_value(dev, "ID_FS_USAGE")).upper() == "RAID"))) {
 				diskstatus = diskstatus & ~TDEDiskDeviceStatus::Mountable;
 			}
 			// If certain disk types do not report the presence of a filesystem, they are likely not mountable