[dpdk-dev] [PATCH] net/ipn3ke: check input arguement before other operation

[Andy Pei]

check input arguement rte_eth_dev *ethdev, ensuring ethdev
is not NULl before operation on ethdev.

Coverity issue: 337922
Fixes: 70d6b7f550f4 ("net/ipn3ke: add representor")
Cc: rosen...@intel.com
Cc: sta...@dpdk.org

Signed-off-by: Andy Pei <andy....@intel.com>
---
 drivers/net/ipn3ke/ipn3ke_representor.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ipn3ke/ipn3ke_representor.c 
b/drivers/net/ipn3ke/ipn3ke_representor.c
index cf3b214..32d4fc8 100644
--- a/drivers/net/ipn3ke/ipn3ke_representor.c
+++ b/drivers/net/ipn3ke/ipn3ke_representor.c
@@ -735,13 +735,16 @@
        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 = NULL;
+       struct ipn3ke_rpst *rpst = NULL;
 
        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:
-- 
1.8.3.1