[dpdk-dev] [PATCH v2] net/ipn3ke: check input argument before other operation

[Andy Pei]

check input argument rte_eth_dev *ethdev,
ensuring ethdev is not NULL before operation on ethdev.

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

Signed-off-by: Andy Pei <andy.pei at 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..f7bb0b4 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;
+	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:
-- 
1.8.3.1