[dpdk-dev] [PATCH] app/test: fix failure on mempool autotest retry

[Andrew Rybchenko <arybchenko@solarflare.com>]

Single producer / single consumer mempool handle is stored in static
variable and the mempool allocated if stored value is NULL.
If the mempool is freed, NULL should be restored to make sure that
the mempool is allocated once again next time when the test is run.

Fixes: 8ef772aee072 ("app/test: rework mempool test")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
 test/test/test_mempool.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/test/test/test_mempool.c b/test/test/test_mempool.c
index 8d29af21e..eebb1f24d 100644
--- a/test/test/test_mempool.c
+++ b/test/test/test_mempool.c
@@ -327,17 +327,17 @@ test_mempool_sp_sc(void)
 	}
 	if (rte_mempool_lookup("test_mempool_sp_sc") != mp_spsc) {
 		printf("Cannot lookup mempool from its name\n");
-		rte_mempool_free(mp_spsc);
-		RET_ERR();
+		ret = -1;
+		goto err;
 	}
 	lcore_next = rte_get_next_lcore(lcore_id, 0, 1);
 	if (lcore_next >= RTE_MAX_LCORE) {
-		rte_mempool_free(mp_spsc);
-		RET_ERR();
+		ret = -1;
+		goto err;
 	}
 	if (rte_eal_lcore_role(lcore_next) != ROLE_RTE) {
-		rte_mempool_free(mp_spsc);
-		RET_ERR();
+		ret = -1;
+		goto err;
 	}
 	rte_spinlock_init(&scsp_spinlock);
 	memset(scsp_obj_table, 0, sizeof(scsp_obj_table));
@@ -348,7 +348,10 @@ test_mempool_sp_sc(void)
 
 	if (rte_eal_wait_lcore(lcore_next) < 0)
 		ret = -1;
+
+err:
 	rte_mempool_free(mp_spsc);
+	mp_spsc = NULL;
 
 	return ret;
 }
-- 
2.14.1