svn commit: r236799 - stable/8/sys/cam

[Alexander Motin]

Author: mav
Date: Sat Jun  9 08:41:30 2012
New Revision: 236799
URL: http://svn.freebsd.org/changeset/base/236799

Log:
  MFC r219241 (by mjacob):
  Don't automatically send a START UNIT to sequential access devices --
  this might cause them to load the tape unintentionally.

Modified:
  stable/8/sys/cam/cam_periph.c
Directory Properties:
  stable/8/sys/   (props changed)

Modified: stable/8/sys/cam/cam_periph.c
==============================================================================
--- stable/8/sys/cam/cam_periph.c	Sat Jun  9 08:25:39 2012	(r236798)
+++ stable/8/sys/cam/cam_periph.c	Sat Jun  9 08:41:30 2012	(r236799)
@@ -1539,6 +1539,15 @@ camperiphscsisenseerror(union ccb *ccb, 
 		case SS_START:
 		{
 			int le;
+			if (SID_TYPE(&cgd.inq_data) == T_SEQUENTIAL) {
+				xpt_free_ccb(orig_ccb);
+				ccb->ccb_h.status |= CAM_DEV_QFRZN;
+				*action_string = "Will not autostart a "
+				    "sequential access device";
+				err_action = SS_FAIL;
+				error = EIO;
+				break;
+			}
 
 			/*
 			 * Send a start unit command to the device, and