mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-23 17:30:02 +00:00
Code Issues Releases Wiki Activity

ieee1394: sbp2: use correct size of command descriptor block

Browse source 
Boaz Harrosh wrote:
> cmd->cmd_len is now guarantied to be set properly at all cases.
> And some commands you want to support will not be set correctly
> by COMMAND_SIZE().

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2008-05-04 16:54:14 +02:00
parent 424de91dd6
commit 93c596f7d6
1 changed files with 8 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
drivers/ieee1394/sbp2.c
View file

@ -1539,15 +1539,13 @@ static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb,
static void sbp2_create_command_orb(struct sbp2_lu *lu,
struct sbp2_command_info *cmd,
unchar *scsi_cmd,
unsigned int scsi_use_sg,
unsigned int scsi_request_bufflen,
struct scatterlist *sg,
enum dma_data_direction dma_dir)
struct scsi_cmnd *SCpnt)
{
struct sbp2_fwhost_info *hi = lu->hi;
struct sbp2_command_orb *orb = &cmd->command_orb;
u32 orb_direction;
unsigned int scsi_request_bufflen = scsi_bufflen(SCpnt);
enum dma_data_direction dma_dir = SCpnt->sc_data_direction;
/*
* Set-up our command ORB.
@ -1580,13 +1578,14 @@ static void sbp2_create_command_orb(struct sbp2_lu *lu,
orb->data_descriptor_lo = 0x0;
orb->misc |= ORB_SET_DIRECTION(1);
} else
sbp2_prep_command_orb_sg(orb, hi, cmd, scsi_use_sg, sg,
sbp2_prep_command_orb_sg(orb, hi, cmd, scsi_sg_count(SCpnt),
scsi_sglist(SCpnt),
orb_direction, dma_dir);
sbp2util_cpu_to_be32_buffer(orb, sizeof(*orb));
memset(orb->cdb, 0, 12);
memcpy(orb->cdb, scsi_cmd, COMMAND_SIZE(*scsi_cmd));
memset(orb->cdb, 0, sizeof(orb->cdb));
memcpy(orb->cdb, SCpnt->cmnd, SCpnt->cmd_len);
}
static void sbp2_link_orb_command(struct sbp2_lu *lu,
@ -1669,16 +1668,13 @@ static void sbp2_link_orb_command(struct sbp2_lu *lu,
static int sbp2_send_command(struct sbp2_lu *lu, struct scsi_cmnd *SCpnt,
void (*done)(struct scsi_cmnd *))
{
unchar *scsi_cmd = (unchar *)SCpnt->cmnd;
struct sbp2_command_info *cmd;
cmd = sbp2util_allocate_command_orb(lu, SCpnt, done);
if (!cmd)
return -EIO;
sbp2_create_command_orb(lu, cmd, scsi_cmd, scsi_sg_count(SCpnt),
scsi_bufflen(SCpnt), scsi_sglist(SCpnt),
SCpnt->sc_data_direction);
sbp2_create_command_orb(lu, cmd, SCpnt);
sbp2_link_orb_command(lu, cmd);
return 0;