From b7f73ada92a396b7ca987695af3243944c757295 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Mon, 21 Nov 2016 10:22:17 -0800
Subject: [PATCH] IB/multicast: Check ib_find_pkey() return value
commit d3a2418ee36a59bc02e9d454723f3175dcf4bfd9 upstream.
This patch avoids that Coverity complains about not checking the
ib_find_pkey() return value.
Fixes: commit 547af76521b3 ("IB/multicast: Report errors on multicast groups if P_key changes")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/infiniband/core/multicast.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c
index 6aa648cb5381..2cd97977b988 100644
--- a/drivers/infiniband/core/multicast.c
+++ b/drivers/infiniband/core/multicast.c
@@ -517,8 +517,11 @@ static void join_handler(int status, struct ib_sa_mcmember_rec *rec,
process_join_error(group, status);
else {
int mgids_changed, is_mgid0;
- ib_find_pkey(group->port->dev->device, group->port->port_num,
- be16_to_cpu(rec->pkey), &pkey_index);
+
+ if (ib_find_pkey(group->port->dev->device,
+ group->port->port_num, be16_to_cpu(rec->pkey),
+ &pkey_index))
+ pkey_index = MCAST_INVALID_PKEY_INDEX;
spin_lock_irq(&group->port->lock);
if (group->state == MCAST_BUSY &&