diff options
| -rw-r--r-- | drivers/scsi/hpsa.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 4d4ecca399a..57d038045ad 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -3413,6 +3413,11 @@ static inline void hpsa_p600_dma_prefetch_quirk(struct ctlr_info *h) static int __devinit hpsa_enter_simple_mode(struct ctlr_info *h) { int i; + u32 trans_support; + + trans_support = readl(&(h->cfgtable->TransportSupport)); + if (!(trans_support & SIMPLE_MODE)) + return -ENOTSUPP; h->max_commands = readl(&(h->cfgtable->CmdsOutMax)); /* Update the field, and then ring the doorbell */ |