net/kni: fix return value check

'rte_kni_release()' return value is not checked, adding it.

Coverity issue: 336837
Fixes: 75e2bc54c018 ("net/kni: add KNI PMD")
Cc: stable@dpdk.org
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/drivers/net/kni/rte_eth_kni.c b/drivers/net/kni/rte_eth_kni.c
index 89f4473..1f232e4 100644 (file)
--- a/drivers/net/kni/rte_eth_kni.c
+++ b/drivers/net/kni/rte_eth_kni.c
@@ -459,6 +459,7 @@ eth_kni_remove(struct rte_vdev_device *vdev)
        struct rte_eth_dev *eth_dev;
        struct pmd_internals *internals;
        const char *name;
+       int ret;
 
        name = rte_vdev_device_name(vdev);
        PMD_LOG(INFO, "Un-Initializing eth_kni for %s", name);
@@ -477,7 +478,9 @@ eth_kni_remove(struct rte_vdev_device *vdev)
        eth_kni_dev_stop(eth_dev);
 
        internals = eth_dev->data->dev_private;
-       rte_kni_release(internals->kni);
+       ret = rte_kni_release(internals->kni);
+       if (ret)
+               PMD_LOG(WARNING, "Not able to release kni for %s", name);
 
        rte_eth_dev_release_port(eth_dev);