[PATCH v2 08/44] net/ark: fix segment fault when parse devargs

[Chengwen Feng]

The rte_kvargs_process() was used to parse KV pairs, it also supports
to parse 'only keys' (e.g. socket_id) type. And the callback function
parameter 'value' is NULL when parsed 'only keys'.

This patch fixes segment fault when parse input args with 'only keys'.

Fixes: 1502d443d885 ("net/ark: replace compile time log config with runtime")
Cc: stable at dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 drivers/net/ark/ark_ethdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ark/ark_ethdev.c b/drivers/net/ark/ark_ethdev.c
index b2995427c8..8baaffd746 100644
--- a/drivers/net/ark/ark_ethdev.c
+++ b/drivers/net/ark/ark_ethdev.c
@@ -898,6 +898,9 @@ process_pktdir_arg(const char *key, const char *value,
 	struct ark_adapter *ark =
 		(struct ark_adapter *)extra_args;
 
+	if (value == NULL)
+		return -EINVAL;
+
 	ark->pkt_dir_v = strtol(value, NULL, 16);
 	ARK_PMD_LOG(DEBUG, "pkt_dir_v = 0x%x\n", ark->pkt_dir_v);
 	return 0;
-- 
2.17.1