test/kni: check init result

Return value 'rte_kni_init' of a function is not checked. If
it fails, error handling (logging and return) should be done.

This patch fixed it.

Fixes: 0c6bc8ef70ba ("kni: memzone pool for alloc and release")
Cc: stable@dpdk.org
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/app/test/test_kni.c b/app/test/test_kni.c
index 3470005..9673355 100644 (file)
--- a/app/test/test_kni.c
+++ b/app/test/test_kni.c
@@ -563,7 +563,11 @@ test_kni(void)
        closedir(dir);
 
        /* Initialize KNI subsystem */
-       rte_kni_init(KNI_TEST_MAX_PORTS);
+       ret = rte_kni_init(KNI_TEST_MAX_PORTS);
+       if (ret < 0) {
+               printf("fail to initialize KNI subsystem\n");
+               return -1;
+       }
 
        if (test_kni_allocate_lcores() < 0) {
                printf("No enough lcores for kni processing\n");