Author: mav
Date: Tue Sep 22 22:20:43 2009
New Revision: 197420
URL: http://svn.freebsd.org/changeset/base/197420
Log:
Lock bus scan.
Modified:
head/sys/dev/ppbus/vpo.c
Modified: head/sys/dev/ppbus/vpo.c
==============================================================================
--- head/sys/dev/ppbus/vpo.c Tue Sep 22 22:17:14 2009 (r197419)
+++ head/sys/dev/ppbus/vpo.c Tue Sep 22 22:20:43 2009 (r197420)
@@ -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_perip
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. */
}
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