1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/scsi/aic94xx/aic94xx_dev.c b/drivers/scsi/aic94xx/aic94xx_dev.c
index c520e5b41fb5..3dce618bf414 100644
--- a/drivers/scsi/aic94xx/aic94xx_dev.c
+++ b/drivers/scsi/aic94xx/aic94xx_dev.c
@@ -126,7 +126,7 @@ static inline int asd_init_sata(struct domain_device *dev)
                 if (w76 & 0x100) /* NCQ? */
                         qdepth = (w75 & 0x1F) + 1;
                 asd_ddbsite_write_dword(asd_ha, ddb, SATA_TAG_ALLOC_MASK,
-                                        (1<<qdepth)-1);
+                                        (1ULL<<qdepth)-1);
                 asd_ddbsite_write_byte(asd_ha, ddb, NUM_SATA_TAGS, qdepth);
         }
         if (dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM ||