1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index e9d6c196a7ab..8d78084abf9f 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -208,6 +208,14 @@ static int slave_configure(struct scsi_device *sdev)
                  * sector in a larger then 1 sector read, since the performance
                  * impact is negible we set this flag for all USB disks */
                 sdev->last_sector_bug = 1;
+
+                /* Enable last-sector hacks for single-target devices using
+                 * the Bulk-only transport, unless we already know the
+                 * capacity will be decremented or is correct. */
+                if (!(us->fflags & (US_FL_FIX_CAPACITY | US_FL_CAPACITY_OK |
+                                        US_FL_SCM_MULT_TARG)) &&
+                                us->protocol == US_PR_BULK)
+                        us->use_last_sector_hacks = 1;
         } else {
 
                 /* Non-disk-type devices don't need to blacklist any pages