eventdev: fix build

build error:
.../lib/librte_eventdev/rte_event_eth_tx_adapter.c:
  In function ‘txa_service_queue_del’:
.../lib/librte_eventdev/rte_event_eth_tx_adapter.c:800:7:
  error: ‘ret’ may be used uninitialized in this function
  [-Werror=maybe-uninitialized]
compilation terminated due to -Wfatal-errors.

https://mails.dpdk.org/archives/test-report/2018-October/065919.html

'ret' may be used uninitialized when 'dev->data->nb_tx_queues' is 0,
although this is not a practical value, initialize 'ret' to cover this
case.

Fixes: a3bbf2e09756 ("eventdev: add eth Tx adapter implementation")

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/lib/librte_eventdev/rte_event_eth_tx_adapter.c b/lib/librte_eventdev/rte_event_eth_tx_adapter.c
index aae0378..3a21def 100644 (file)
--- a/lib/librte_eventdev/rte_event_eth_tx_adapter.c
+++ b/lib/librte_eventdev/rte_event_eth_tx_adapter.c
@@ -797,7 +797,7 @@ txa_service_queue_del(uint8_t id,
 
        if (tx_queue_id == -1) {
                uint16_t i;
-               int ret;
+               int ret = -1;
 
                for (i = 0; i < dev->data->nb_tx_queues; i++) {
                        ret = txa_service_queue_del(id, dev, i);