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Lock bus scan.

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This commit is contained in:
Alexander Motin 2009-09-22 22:20:43 +00:00
parent a3f00c8abf
commit 3ba45aaa60
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=197420
1 changed files with 4 additions and 3 deletions
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7
sys/dev/ppbus/vpo.c
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@ -176,9 +176,6 @@ vpo_attach(device_t dev)
return (ENXIO);
}
ppb_unlock(ppbus);
/* all went ok */
vpo_cam_rescan(vpo); /* have CAM rescan the bus */
return (0);
@ -194,12 +191,15 @@ vpo_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
static void
vpo_cam_rescan(struct vpo_data *vpo)
{
device_t ppbus = device_get_parent(vpo->vpo_dev);
struct cam_path *path;
union ccb *ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO);
ppb_lock(ppbus);
if (xpt_create_path(&path, xpt_periph, cam_sim_path(vpo->sim), 0, 0)
!= CAM_REQ_CMP) {
/* A failure is benign as the user can do a manual rescan */
ppb_unlock(ppbus);
free(ccb, M_TEMP);
return;
}
@ -209,6 +209,7 @@ vpo_cam_rescan(struct vpo_data *vpo)
ccb->ccb_h.cbfcnp = vpo_cam_rescan_callback;
ccb->crcn.flags = CAM_FLAG_NONE;
xpt_action(ccb);
ppb_unlock(ppbus);
/* The scan is in progress now. */
}