1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/scsi/aic94xx/aic94xx_seq.c b/drivers/scsi/aic94xx/aic94xx_seq.c
index 0d343cfd433..2768fe4d66b 100644
--- a/drivers/scsi/aic94xx/aic94xx_seq.c
+++ b/drivers/scsi/aic94xx/aic94xx_seq.c
@@ -1395,7 +1395,9 @@ void asd_update_port_links(struct asd_ha_struct *asd_ha, struct asd_phy *phy)
         u8  phy_is_up;
         u8  mask;
         int i, err;
+        unsigned long flags;
 
+        spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
         for_each_phy(phy_mask, mask, i)
                 asd_ddbsite_write_byte(asd_ha, 0,
                                        offsetof(struct asd_ddb_seq_shared,
@@ -1415,6 +1417,7 @@ void asd_update_port_links(struct asd_ha_struct *asd_ha, struct asd_phy *phy)
                         break;
                 }
         }
+        spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
 
         if (err)
                 asd_printk("couldn't update DDB 0:error:%d\n", err);