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authorBart Van Assche <bart.vanassche@sandisk.com>2016-11-21 10:22:17 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-09 08:21:58 +0100
commit2a0aa77a54fb3f79b134535c056c7bdd02a882bf (patch)
treef9e7b00a7efae83ba0d6f3b529518830e716ff58
parent37d4adba02d34bce1fa94769a922ef88e1cbcc34 (diff)
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>
-rw-r--r--drivers/infiniband/core/multicast.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c
index 51c79b2fb0b8..45523cf1b83b 100644
--- a/drivers/infiniband/core/multicast.c
+++ b/drivers/infiniband/core/multicast.c
@@ -518,8 +518,11 @@ 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 &&