Author: sephe
Date: Fri Oct 14 05:32:47 2016
New Revision: 307261
URL: https://svnweb.freebsd.org/changeset/base/307261

Log:
  hyperv/stor: Fix off-by-one bug; this brings back TRIM support.
  
  Submitted by: Hongjiang Zhang <honzhan microsoft com>
  Reported by:  Lili Deng <v-lide microsoft com>
  MFC after:    3 days
  Sponsored by: Microsoft
  Differential Revision:        https://reviews.freebsd.org/D8238

Modified:
  head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c

Modified: head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c
==============================================================================
--- head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c        Fri Oct 14 
05:05:23 2016        (r307260)
+++ head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c        Fri Oct 14 
05:32:47 2016        (r307261)
@@ -2210,7 +2210,7 @@ storvsc_io_done(struct hv_storvsc_reques
                                    resp_buf[3], resp_buf[4]);
                        }
                        if (vm_srb->srb_status == SRB_STATUS_SUCCESS &&
-                           data_len > SHORT_INQUIRY_LENGTH) {
+                           data_len >= SHORT_INQUIRY_LENGTH) {
                                char vendor[16];
 
                                cam_strvis(vendor, inq_data->vendor,
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