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net/ipn3ke: fix accessing variable before null check

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Check input argument "rte_eth_dev *ethdev", to be sure variable is not
NULL before operating on it.

Coverity issue: 337922
Fixes: 70d6b7f550 ("net/ipn3ke: add representor")
Cc: stable@dpdk.org

Signed-off-by: Andy Pei <andy.pei@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
This commit is contained in:
Andy Pei 2019-05-23 10:53:03 +08:00 committed by Ferruh Yigit
parent 50ade1a714
commit 320eecbc7f
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ipn3ke/ipn3ke_representor.c
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@ -736,13 +736,16 @@ ipn3ke_afu_filter_ctrl(struct rte_eth_dev *ethdev,
enum rte_filter_type filter_type, enum rte_filter_op filter_op,
void *arg)
{
struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
int ret = 0;
struct ipn3ke_hw *hw;
struct ipn3ke_rpst *rpst;
if (ethdev == NULL)
return -EINVAL;
hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
if (hw->acc_flow)
switch (filter_type) {
case RTE_ETH_FILTER_GENERIC: