app/bbdev: fix unchecked return value

add check for rte_bbdev_callback_register() retun

Coverity issue: 257027
Fixes: f714a18885a6 ("app/testbbdev: add test application for bbdev")

Signed-off-by: Amr Mokhtar <amr.mokhtar@intel.com>

diff --git a/app/test-bbdev/test_bbdev_perf.c b/app/test-bbdev/test_bbdev_perf.c
index 8f6896c..00f3b08 100644 (file)
--- a/app/test-bbdev/test_bbdev_perf.c
+++ b/app/test-bbdev/test_bbdev_perf.c
@@ -1557,9 +1557,11 @@ throughput_test(struct active_device *ad,
                        throughput_function = throughput_intr_lcore_enc;
 
                /* Dequeue interrupt callback registration */
-               rte_bbdev_callback_register(ad->dev_id, RTE_BBDEV_EVENT_DEQUEUE,
-                               dequeue_event_callback,
+               ret = rte_bbdev_callback_register(ad->dev_id,
+                               RTE_BBDEV_EVENT_DEQUEUE, dequeue_event_callback,
                                &t_params);
+               if (ret < 0)
+                       return ret;
        } else {
                if (test_vector.op_type == RTE_BBDEV_OP_TURBO_DEC)
                        throughput_function = throughput_pmd_lcore_dec;