[PATCH v2 27/44] net/qede: 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: f64b91b0eb5d ("net/qede: replace config option with run-time arg")
Cc: stable at dpdk.org

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

diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index a4923670d6..e1d57723fa 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -1211,6 +1211,9 @@ static int qede_args_check(const char *key, const char *val, void *opaque)
 	struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
 	struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
 
+	if (val == NULL)
+		return -EINVAL;
+
 	errno = 0;
 	tmp = strtoul(val, NULL, 0);
 	if (errno) {
-- 
2.17.1