The function l3fwd_get_free_event_port acquires a lock on
'evt_rsrc->evp.lock' at the beginning. This lock is expected
to be released at the first return statement, when no free
event port is available.

Fixes: aaf58cb85b62 ("examples/l3fwd: add event port and queue setup")
Cc: sta...@dpdk.org

Signed-off-by: Weiguo Li <liwei...@xencore.cn>
---
 examples/l3fwd/l3fwd_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/examples/l3fwd/l3fwd_event.c b/examples/l3fwd/l3fwd_event.c
index 20be22c6db..40c69baafb 100644
--- a/examples/l3fwd/l3fwd_event.c
+++ b/examples/l3fwd/l3fwd_event.c
@@ -205,6 +205,7 @@ l3fwd_get_free_event_port(struct l3fwd_event_resources 
*evt_rsrc)
 
        rte_spinlock_lock(&evt_rsrc->evp.lock);
        if (index >= evt_rsrc->evp.nb_ports) {
+               rte_spinlock_unlock(&evt_rsrc->evp.lock);
                printf("No free event port is available\n");
                return -1;
        }
-- 
2.34.1

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