diff options
| -rw-r--r-- | drivers/scsi/aacraid/aachba.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 0c4e27eb652..f9deab686dc 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -350,8 +350,9 @@ static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigne buf = scsicmd->request_buffer; transfer_len = min(scsicmd->request_bufflen, len + offset); } - - memcpy(buf + offset, data, transfer_len - offset); + transfer_len -= offset; + if (buf && transfer_len) + memcpy(buf + offset, data, transfer_len); if (scsicmd->use_sg) kunmap_atomic(buf - sg->offset, KM_IRQ0); |