diff options
Diffstat (limited to 'drivers/scsi/arcmsr/arcmsr_hba.c')
| -rw-r--r-- | drivers/scsi/arcmsr/arcmsr_hba.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c index 7640498964a5..3d53d636b17b 100644 --- a/drivers/scsi/arcmsr/arcmsr_hba.c +++ b/drivers/scsi/arcmsr/arcmsr_hba.c @@ -2388,15 +2388,23 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, } case ARCMSR_MESSAGE_WRITE_WQBUFFER: { unsigned char *ver_addr; - int32_t user_len, cnt2end; + uint32_t user_len; + int32_t cnt2end; uint8_t *pQbuffer, *ptmpuserbuffer; + + user_len = pcmdmessagefld->cmdmessage.Length; + if (user_len > ARCMSR_API_DATA_BUFLEN) { + retvalue = ARCMSR_MESSAGE_FAIL; + goto message_out; + } + ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC); if (!ver_addr) { retvalue = ARCMSR_MESSAGE_FAIL; goto message_out; } ptmpuserbuffer = ver_addr; - user_len = pcmdmessagefld->cmdmessage.Length; + memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer, user_len); spin_lock_irqsave(&acb->wqbuffer_lock, flags); |