[PATCH v2 16/16] examples/vhost: verify strdup return value

[Chengwen Feng]

Add verify strdup return value logic.

Fixes: 53d3f4778c1d ("vhost: integrate dmadev in asynchronous data-path")
Cc: stable at dpdk.org

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 examples/vhost/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index ce5c1efddf..3fc1b151d1 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -260,6 +260,9 @@ open_dma(const char *value)
 	char *dma_arg[RTE_MAX_VHOST_DEVICE];
 	int args_nr;
 
+	if (input == NULL)
+		return -1;
+
 	while (isblank(*addrs))
 		addrs++;
 	if (*addrs == '\0') {
-- 
2.17.1