1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index dbc2a912114f..ba5c91b81312 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -216,8 +216,12 @@ int sas_queuecommand(struct scsi_cmnd *cmd,
                 struct sas_task *task;
 
                 if (dev_is_sata(dev)) {
+                        unsigned long flags;
+
+                        spin_lock_irqsave(dev->sata_dev.ap->lock, flags);
                         res = ata_sas_queuecmd(cmd, scsi_done,
                                                dev->sata_dev.ap);
+                        spin_unlock_irqrestore(dev->sata_dev.ap->lock, flags);
                         goto out;
                 }