[PATCH 9/9] raw/skeleton: 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'
(e.g. self_test).

Fixes: 55ca1b0f2151 ("raw/skeleton: add test cases")
Cc: stable at dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 drivers/raw/skeleton/skeleton_rawdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/raw/skeleton/skeleton_rawdev.c b/drivers/raw/skeleton/skeleton_rawdev.c
index b2ca1cc5cd..53fe49f936 100644
--- a/drivers/raw/skeleton/skeleton_rawdev.c
+++ b/drivers/raw/skeleton/skeleton_rawdev.c
@@ -664,6 +664,8 @@ skeldev_get_selftest(const char *key __rte_unused,
 		     void *opaque)
 {
 	int *flag = opaque;
+	if (value == NULL || opaque == NULL)
+		return -EINVAL;
 	*flag = atoi(value);
 	return 0;
 }
-- 
2.17.1