1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index e83e661b0257..83efec2919b1 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2064,6 +2064,11 @@ static void unmap_region(sector_t lba, unsigned int len)
                                        scsi_debug_sector_size *
                                        scsi_debug_unmap_granularity);
                         }
+                        if (dif_storep) {
+                                memset(dif_storep + lba, 0xff,
+                                       sizeof(*dif_storep) *
+                                       scsi_debug_unmap_granularity);
+                        }
                 }
                 lba = map_index_to_lba(index + 1);
         }