From: Gao Feng <davidfgao@tencent.com>
Date: Fri, 7 Dec 2018 01:20:08 +0000 (+0800)
Subject: memzone: fix unlock on initialization failure
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=cc8035322384b2454b596ee7e557cae3250f20f1;p=dpdk.git

memzone: fix unlock on initialization failure

The RTE_PROC_PRIMARY error handler lost the unlock statement in the
current codes. Now unlock and return in one place to fix it.

Fixes: 49df3db84883 ("memzone: replace memzone array with fbarray")
Cc: stable@dpdk.org

Signed-off-by: Gao Feng <davidfgao@tencent.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
---

diff --git a/lib/librte_eal/common/eal_common_memzone.c b/lib/librte_eal/common/eal_common_memzone.c
index b7081afbfa..664df5b9ff 100644
--- a/lib/librte_eal/common/eal_common_memzone.c
+++ b/lib/librte_eal/common/eal_common_memzone.c
@@ -365,6 +365,7 @@ int
 rte_eal_memzone_init(void)
 {
 	struct rte_mem_config *mcfg;
+	int ret = 0;
 
 	/* get pointer to global configuration */
 	mcfg = rte_eal_get_configuration()->mem_config;
@@ -375,17 +376,16 @@ rte_eal_memzone_init(void)
 			rte_fbarray_init(&mcfg->memzones, "memzone",
 			RTE_MAX_MEMZONE, sizeof(struct rte_memzone))) {
 		RTE_LOG(ERR, EAL, "Cannot allocate memzone list\n");
-		return -1;
+		ret = -1;
 	} else if (rte_eal_process_type() == RTE_PROC_SECONDARY &&
 			rte_fbarray_attach(&mcfg->memzones)) {
 		RTE_LOG(ERR, EAL, "Cannot attach to memzone list\n");
-		rte_rwlock_write_unlock(&mcfg->mlock);
-		return -1;
+		ret = -1;
 	}
 
 	rte_rwlock_write_unlock(&mcfg->mlock);
 
-	return 0;
+	return ret;
 }
 
 /* Walk all reserved memory zones */