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-rw-r--r--sys/cam/cam_periph.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/cam/cam_periph.c b/sys/cam/cam_periph.c
index 1c636cb..ef67c79 100644
--- a/sys/cam/cam_periph.c
+++ b/sys/cam/cam_periph.c
@@ -376,6 +376,17 @@ cam_periph_acquire(struct cam_periph *periph)
}
void
+cam_periph_doacquire(struct cam_periph *periph)
+{
+
+ xpt_lock_buses();
+ KASSERT(periph->refcount >= 1,
+ ("cam_periph_doacquire() with refcount == %d", periph->refcount));
+ periph->refcount++;
+ xpt_unlock_buses();
+}
+
+void
cam_periph_release_locked_buses(struct cam_periph *periph)
{
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