From 8d08023687e2515f2a48235aed80b6982025cd09 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Sat, 17 Aug 2013 20:20:07 +0000 Subject: [PATCH] libfc: Clarify fc_exch_find() The condition ep != NULL && ep->xid != xid can never be met. Make this explicit. Signed-off-by: Bart Van Assche Cc: Neil Horman Signed-off-by: Robert Love --- drivers/scsi/libfc/fc_exch.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index d0be52a..f6bb0fb 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -836,8 +836,10 @@ static struct fc_exch *fc_exch_find(struct fc_exch_mgr *mp, u16 xid) pool = per_cpu_ptr(mp->pool, xid & fc_cpu_mask); spin_lock_bh(&pool->lock); ep = fc_exch_ptr_get(pool, (xid - mp->min_xid) >> fc_cpu_order); - if (ep && ep->xid == xid) + if (ep) { + WARN_ON(ep->xid != xid); fc_exch_hold(ep); + } spin_unlock_bh(&pool->lock); } return ep; -- 2.7.4