--- branches/ros-branch-0_2_5/reactos/drivers/storage/atapi/atapi.c 2005-01-02 19:27:53 UTC (rev 12732)
+++ branches/ros-branch-0_2_5/reactos/drivers/storage/atapi/atapi.c 2005-01-02 19:36:33 UTC (rev 12733)
@@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/* $Id: atapi.c,v 1.56 2004/11/18 08:32:32 gvg Exp $
+/* $Id$
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS ATAPI miniport driver
@@ -2224,6 +2224,17 @@
DPRINT("SCSIOP_SYNCRONIZE_CACHE: TargetId: %lu\n",
Srb->TargetId);
+ if (DeviceExtension->DeviceFlags[Srb->TargetId] & DEVICE_ATAPI)
+ {
+ /* NOTE: Don't flush the cache for ATAPI devices. Although
+ * the ATAPI-6 standard allows that, it has been experimentally
+ * proved that it can damage some broken LG drives. Afterall
+ * it doesn't make sense to flush cache on devices we don't
+ * write to.
+ */
+ return STATUS_SUCCESS;
+ }
+
/* Wait for BUSY to clear */
for (Retries = 0; Retries < IDE_MAX_BUSY_RETRIES; Retries++)
{