From b7f73ada92a396b7ca987695af3243944c757295 Mon Sep 17 00:00:00 2001 From: Bart Van Assche 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 Cc: Sean Hefty Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman --- 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 && -- 2.20.1