1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index a9b4083a4f67..fd7064b9697d 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -2596,3 +2596,26 @@ void ata_scsi_scan_host(struct ata_port *ap)
         }
 }
 
+/**
+ *      ata_schedule_scsi_eh - schedule EH for SCSI host
+ *      @shost: SCSI host to invoke error handling on.
+ *
+ *      Schedule SCSI EH without scmd.  This is a hack.
+ *
+ *      LOCKING:
+ *      spin_lock_irqsave(host_set lock)
+ **/
+void ata_schedule_scsi_eh(struct Scsi_Host *shost)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(shost->host_lock, flags);
+
+        if (scsi_host_set_state(shost, SHOST_RECOVERY) == 0 ||
+            scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY) == 0) {
+                shost->host_eh_scheduled++;
+                scsi_eh_wakeup(shost);
+        }
+
+        spin_unlock_irqrestore(shost->host_lock, flags);
+}