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| author |   Gustavo A. R. Silva <garsilva@embeddedor.com> | 2017-05-22 13:30:15 -0500 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-06-01 17:20:08 -0400 |
| commit | d38d7fdafaf89d1756f27e9b4054dd19a1d2f545 (patch) | |
| tree | cf620f4019a4a5e3b4128abee6da82b86d366768 /drivers/infiniband/hw/qedr | |
| parent | RDMA/mlx5: set UMR wqe fence according to HCA cap (diff) | |
| download | linux-dev-d38d7fdafaf89d1756f27e9b4054dd19a1d2f545.tar.xz linux-dev-d38d7fdafaf89d1756f27e9b4054dd19a1d2f545.zip | |
RDMA/qedr: add null check before pointer dereference
Add null check before dereferencing pointer sgid_attr.ndev
inside function rdma_vlan_dev_vlan_id().
Addresses-Coverity-ID: 1373979
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/qedr')
| -rw-r--r-- | drivers/infiniband/hw/qedr/qedr_cm.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/qedr/qedr_cm.c b/drivers/infiniband/hw/qedr/qedr_cm.c index 3d7705cec770..d86dbe814d98 100644 --- a/drivers/infiniband/hw/qedr/qedr_cm.c +++ b/drivers/infiniband/hw/qedr/qedr_cm.c @@ -270,11 +270,13 @@ static inline int qedr_gsi_build_header(struct qedr_dev *dev, return rc; } - vlan_id = rdma_vlan_dev_vlan_id(sgid_attr.ndev); - if (vlan_id < VLAN_CFI_MASK) - has_vlan = true; - if (sgid_attr.ndev) + if (sgid_attr.ndev) { + vlan_id = rdma_vlan_dev_vlan_id(sgid_attr.ndev); + if (vlan_id < VLAN_CFI_MASK) + has_vlan = true; + dev_put(sgid_attr.ndev); + } if (!memcmp(&sgid, &zgid, sizeof(sgid))) { DP_ERR(dev, "gsi post send: GID not found GID index %d\n", |