This patch fixes the coverity CHECKED_RETURN issue.

Coverity issue: 261779
Fixes: cfdfca493cae ("net/i40e: fix multiple driver support")

Reported-by: John McNamara <john.mcnam...@intel.com>
Signed-off-by: Beilei Xing <beilei.x...@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 65a4b7a..508b417 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1107,8 +1107,12 @@ i40e_support_multi_driver(struct rte_eth_dev *dev)
                            "the first invalid or last valid one is used !",
                            ETH_I40E_SUPPORT_MULTI_DRIVER);
 
-       rte_kvargs_process(kvlist, ETH_I40E_SUPPORT_MULTI_DRIVER,
-                          i40e_parse_multi_drv_handler, pf);
+       if (rte_kvargs_process(kvlist, ETH_I40E_SUPPORT_MULTI_DRIVER,
+                              i40e_parse_multi_drv_handler, pf) < 0) {
+               rte_kvargs_free(kvlist);
+               return -EINVAL;
+       }
+
        rte_kvargs_free(kvlist);
        return 0;
 }
-- 
2.5.5

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