[dpdk-dev] [PATCH v1] net/virtio-user: fix return value check

[Chenbo Xia]

Fix unchecked return value for fcntl.

Coverity issue: 277210
Fixes: bd8f50a45d0f ("net/virtio-user: support server mode")
Cc: sta...@dpdk.org

Signed-off-by: Chenbo Xia <chenbo....@intel.com>
---
 drivers/net/virtio/virtio_user/vhost_user.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/virtio/virtio_user/vhost_user.c 
b/drivers/net/virtio/virtio_user/vhost_user.c
index 827a48ad6..4b74bd2d8 100644
--- a/drivers/net/virtio/virtio_user/vhost_user.c
+++ b/drivers/net/virtio/virtio_user/vhost_user.c
@@ -394,7 +394,10 @@ virtio_user_start_server(struct virtio_user_dev *dev, 
struct sockaddr_un *un)
                return -1;
 
        flag = fcntl(fd, F_GETFL);
-       fcntl(fd, F_SETFL, flag | O_NONBLOCK);
+       if (fcntl(fd, F_SETFL, flag | O_NONBLOCK) < 0) {
+               PMD_DRV_LOG(ERR, "fcntl failed, %s", strerror(errno));
+               return -1;
+       }
 
        return 0;
 }
-- 
2.17.1