From 9edbd990bb60dd7678f7f4f8ca3d92e03a1f0e67 Mon Sep 17 00:00:00 2001
From: Bryan O'Sullivan <bos@pathscale.com>
Date: Sat, 1 Jul 2006 04:35:56 -0700
Subject: [PATCH] [PATCH] IB/ipath: return an error for unknown multicast GID

Signed-off-by: Robert Walsh <robert.walsh@qlogic.com>
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Cc: "Michael S. Tsirkin" <mst@mellanox.co.il>
Cc: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/infiniband/hw/ipath/ipath_verbs_mcast.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
index a97548ee6a97..996bbb05c396 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c
@@ -273,7 +273,7 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 	while (1) {
 		if (n == NULL) {
 			spin_unlock_irqrestore(&mcast_lock, flags);
-			ret = 0;
+			ret = -EINVAL;
 			goto bail;
 		}