Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two simple fixes, both of which cause I/O hangs.

  The storvsc one is from the hyper-v which can hang under certain hot
  add/remove conditions and the other is generally, where removing a
  target and a device in close proximity can result in the release
  method being executed twice (and subsequent list and other corruption
  and an eventual panic)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: storvsc: Fix scsi_cmd error assignments in storvsc_handle_error
  scsi: core: check for device state in __scsi_remove_target()

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index a9996c1..26ce171 100644 (file)
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1415,7 +1415,10 @@ static void __scsi_remove_target(struct scsi_target *starget)
                 * check.
                 */
                if (sdev->channel != starget->channel ||
-                   sdev->id != starget->id ||
+                   sdev->id != starget->id)
+                       continue;
+               if (sdev->sdev_state == SDEV_DEL ||
+                   sdev->sdev_state == SDEV_CANCEL ||
                    !get_device(&sdev->sdev_gendev))
                        continue;
                spin_unlock_irqrestore(shost->host_lock, flags);

diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 1b06cf0..3b3d1d0 100644 (file)
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -953,10 +953,11 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
                case TEST_UNIT_READY:
                        break;
                default:
-                       set_host_byte(scmnd, DID_TARGET_FAILURE);
+                       set_host_byte(scmnd, DID_ERROR);
                }
                break;
        case SRB_STATUS_INVALID_LUN:
+               set_host_byte(scmnd, DID_NO_CONNECT);
                do_work = true;
                process_err_fn = storvsc_remove_lun;
                break;