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authorBart Van Assche <bart.vanassche@sandisk.com>2016-11-21 19:22:17 +0100
committerDoug Ledford <dledford@redhat.com>2016-12-14 19:27:34 +0100
commitd3a2418ee36a59bc02e9d454723f3175dcf4bfd9 (patch)
tree104f2825587b27107eb55cee9be731fc16a242c8 /drivers/infiniband
parentIPoIB: Avoid reading an uninitialized member variable (diff)
downloadlinux-d3a2418ee36a59bc02e9d454723f3175dcf4bfd9.tar.xz
linux-d3a2418ee36a59bc02e9d454723f3175dcf4bfd9.zip
IB/multicast: Check ib_find_pkey() return value
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> Cc: <stable@vger.kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
-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 e51b739f6ea3..322cb67b07a9 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 &&