--- zzzz-none-000/linux-3.10.107/drivers/scsi/sd.c	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/drivers/scsi/sd.c	2021-11-10 11:53:55.000000000 +0000
@@ -1388,9 +1388,13 @@
 	retval = -ENODEV;
 
 	if (scsi_block_when_processing_errors(sdp)) {
-		sshdr  = kzalloc(sizeof(*sshdr), GFP_KERNEL);
-		retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES,
-					      sshdr);
+		/* == 20150928 AVM/WKR - STORAGE fix: TUR prevented STOP_UNIT on some hard_disks ==*/ 
+		/* == 20170208 AVM/VGJ - TUR wakes up suspended devices. Do it only if there is no media ==*/
+		retval = 0;
+		if (!sdkp->media_present) {
+			sshdr  = kzalloc(sizeof(*sshdr), GFP_KERNEL);
+			retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES, sshdr);
+		}
 	}
 
 	/* failed to execute TUR, assume media not present */