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Fix a formatting error.

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Fix a problem reported by bde:  setting SCSI_DELAY to 0 doesn't work.  Now,
when the user sets SCSI_DELAY to 0, we re-set it to the minimum allowable
bus settle delay (100ms).

Fix a potential panic in xptfinishconfigfunc() if the CCB passed in is
NULL.  Reported by, I think, Nicolas Souchu.  Fix a memory leak in the same
function (we created a path, but didn't free it) by allocating the getdev
CCB and path on the stack.

Reviewed by:	gibbs
This commit is contained in:
Kenneth D. Merry 1998-09-17 23:58:53 +00:00
parent 948486abe3
commit a822eb2a8b
1 changed files with 31 additions and 19 deletions
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50
sys/cam/cam_xpt.c
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: cam_xpt.c,v 1.4 1998/09/16 13:24:37 gibbs Exp $
* $Id: cam_xpt.c,v 1.5 1998/09/16 23:30:01 ken Exp $
*/
#include <sys/param.h>
#include <sys/systm.h>
@ -97,6 +97,19 @@ STAILQ_HEAD(highpowerlist, ccb_hdr) highpowerq;
#ifndef SCSI_DELAY
#define SCSI_DELAY 2000
#endif
/*
* If someone sets this to 0, we assume that they want the minimum
* allowable bus settle delay. All devices need _some_ sort of bus settle
* delay, so we'll set it to a minimum value of 100ms.
*/
#if (SCSI_DELAY == 0)
#undef SCSI_DELAY
#define SCSI_DELAY 100
#endif
/*
* Make sure the user isn't using seconds instead of milliseconds.
*/
#if (SCSI_DELAY < 100)
#error "SCSI_DELAY is in milliseconds, not seconds! Please use a larger value"
#endif
@ -268,9 +281,10 @@ static struct xpt_quirk_entry xpt_quirk_table[] =
{
/* Really only one LUN */
{
T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA*", "*" },
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
T_ENCLOSURE, SIP_MEDIA_FIXED, "SUN", "SENA*", "*"
},
CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
},
{
/* Default tagged queuing parameters for all devices */
{
@ -5358,28 +5372,26 @@ xpt_config(void *arg)
static int
xptfinishconfigfunc(struct cam_ed *device, void *arg)
{
union ccb *done_ccb;
union ccb work_ccb;
struct cam_path path;
cam_status status;
done_ccb = (union ccb *)arg;
if ((status = xpt_create_path(&done_ccb->ccb_h.path,
xpt_periph, device->target->bus->path_id,
device->target->target_id,
device->lun_id)) != CAM_REQ_CMP) {
printf("xptfinishconfig: xpt_create_path failed with status"
" %#x, halting bus configuration\n", status);
if ((status = xpt_compile_path(&path, xpt_periph,
device->target->bus->path_id,
device->target->target_id,
device->lun_id)) != CAM_REQ_CMP) {
printf("xptfinishconfig: xpt_compile_path failed with status"
" %#x, halting device registration\n", status);
return(0);
}
xpt_setup_ccb(&done_ccb->ccb_h,
done_ccb->ccb_h.path,
/*priority*/1);
xpt_setup_ccb(&work_ccb.ccb_h, &path, /*priority*/1);
done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
xpt_action(done_ccb);
xpt_async(AC_FOUND_DEVICE, done_ccb->ccb_h.path, done_ccb);
work_ccb.ccb_h.func_code = XPT_GDEV_TYPE;
xpt_action(&work_ccb);
xpt_async(AC_FOUND_DEVICE, &path, &work_ccb);
xpt_release_path(&path);
return(1);
}
@ -5449,7 +5461,7 @@ xpt_finishconfig(struct cam_periph *periph, union ccb *done_ccb)
* Itterate through our devices announcing
* them in probed bus order.
*/
xpt_for_all_devices(xptfinishconfigfunc, done_ccb);
xpt_for_all_devices(xptfinishconfigfunc, NULL);
/*
* Check for devices with no "standard" peripheral driver