1 files changed, 22 insertions, 7 deletions

diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index e20dc525d177..3a4fb023af72 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -768,17 +768,32 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
                 /* set the result so the higher layers expect this data */
                 srb->result = SAM_STAT_CHECK_CONDITION;
 
-                /* If things are really okay, then let's show that.  Zero
-                 * out the sense buffer so the higher layers won't realize
-                 * we did an unsolicited auto-sense. */
-                if (result == USB_STOR_TRANSPORT_GOOD &&
-                        /* Filemark 0, ignore EOM, ILI 0, no sense */
+                /* We often get empty sense data.  This could indicate that
+                 * everything worked or that there was an unspecified
+                 * problem.  We have to decide which.
+                 */
+                if (    /* Filemark 0, ignore EOM, ILI 0, no sense */
                                 (srb->sense_buffer[2] & 0xaf) == 0 &&
                         /* No ASC or ASCQ */
                                 srb->sense_buffer[12] == 0 &&
                                 srb->sense_buffer[13] == 0) {
-                        srb->result = SAM_STAT_GOOD;
-                        srb->sense_buffer[0] = 0x0;
+
+                        /* If things are really okay, then let's show that.
+                         * Zero out the sense buffer so the higher layers
+                         * won't realize we did an unsolicited auto-sense.
+                         */
+                        if (result == USB_STOR_TRANSPORT_GOOD) {
+                                srb->result = SAM_STAT_GOOD;
+                                srb->sense_buffer[0] = 0x0;
+
+                        /* If there was a problem, report an unspecified
+                         * hardware error to prevent the higher layers from
+                         * entering an infinite retry loop.
+                         */
+                        } else {
+                                srb->result = DID_ERROR << 16;
+                                srb->sense_buffer[2] = HARDWARE_ERROR;
+                        }
                 }
         }