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IB/multicast: Check ib_find_pkey() return value

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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>
This commit is contained in:
Bart Van Assche 2016-11-21 10:22:17 -08:00 committed by Greg Kroah-Hartman
parent 7b13692156
commit b7f73ada92
1 changed files with 5 additions and 2 deletions
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7
drivers/infiniband/core/multicast.c
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@ -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 &&