MFC r280388 (by benno): Be consistent with M_ZERO when allocating ccbs.

There are four places, all in cam_xpt.c, where ccbs are malloc'ed. Two of
these use M_ZERO, two don't. The two that don't meant that allocated ccbs
had trash in them making it hard to debug errors where they showed up. Due
to this, use M_ZERO all the time when allocating ccbs.

1 files changed, 2 insertions, 2 deletions

diff --git a/sys/cam/cam_xpt.c b/sys/cam/cam_xpt.c
index 17b4f19..5c3c37d 100644
--- a/sys/cam/cam_xpt.c
+++ b/sys/cam/cam_xpt.c
@@ -4527,7 +4527,7 @@ xpt_get_ccb_nowait(struct cam_periph *periph)
 {
 	union ccb *new_ccb;
 
-	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_NOWAIT);
+	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_ZERO|M_NOWAIT);
 	if (new_ccb == NULL)
 		return (NULL);
 	periph->periph_allocated++;
@@ -4541,7 +4541,7 @@ xpt_get_ccb(struct cam_periph *periph)
 	union ccb *new_ccb;
 
 	cam_periph_unlock(periph);
-	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_WAITOK);
+	new_ccb = malloc(sizeof(*new_ccb), M_CAMCCB, M_ZERO|M_WAITOK);
 	cam_periph_lock(periph);
 	periph->periph_allocated++;
 	cam_ccbq_take_opening(&periph->path->device->ccbq);