From: Daniil Tatianin d-tatianin@yandex-team.ru
[ Upstream commit 25143b6a01d0cc5319edd3de22ffa2578b045550 ]
We have to make sure that the info returned by the helper is valid before using it.
Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
Fixes: f990c82c385b ("qed*: Add support for ndo_set_vf_trust") Fixes: 733def6a04bf ("qed*: IOV link control") Signed-off-by: Daniil Tatianin d-tatianin@yandex-team.ru Reviewed-by: Michal Swiatkowski michal.swiatkowski@linux.intel.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/qlogic/qed/qed_sriov.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c index 402c1c3d84ce2..5c8eaded6b30d 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c +++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c @@ -4403,6 +4403,9 @@ qed_iov_configure_min_tx_rate(struct qed_dev *cdev, int vfid, u32 rate) }
vf = qed_iov_get_vf_info(QED_LEADING_HWFN(cdev), (u16)vfid, true); + if (!vf) + return -EINVAL; + vport_id = vf->vport_id;
return qed_configure_vport_wfq(cdev, vport_id, rate); @@ -5142,7 +5145,7 @@ static void qed_iov_handle_trust_change(struct qed_hwfn *hwfn)
/* Validate that the VF has a configured vport */ vf = qed_iov_get_vf_info(hwfn, i, true); - if (!vf->vport_instance) + if (!vf || !vf->vport_instance) continue;
memset(¶ms, 0, sizeof(params));