From: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Date: Wed, 6 Jul 2016 10:44:53 +0000 (+0200)
Subject: mem: fix hugepage resource leak
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=f0a1dd3b991714e2910bdcc67426b6c8e4c8cfe5;p=dpdk.git

mem: fix hugepage resource leak

Current code does not munmap 'hugepage' mapping (hugepage info file) on
function exit, leaking resources.

Coverity issue: 97920
Fixes: b6a468ad41d5 ("memory: add --socket-mem option")

Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
---

diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c b/lib/librte_eal/linuxapp/eal/eal_memory.c
index 5578c254d7..b663244fdb 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -1136,7 +1136,7 @@ int
 rte_eal_hugepage_init(void)
 {
 	struct rte_mem_config *mcfg;
-	struct hugepage_file *hugepage, *tmp_hp = NULL;
+	struct hugepage_file *hugepage = NULL, *tmp_hp = NULL;
 	struct hugepage_info used_hp[MAX_HUGEPAGE_SIZES];
 
 	uint64_t memory[RTE_MAX_NUMA_NODES];
@@ -1479,14 +1479,19 @@ rte_eal_hugepage_init(void)
 			"of memory.\n",
 			i, nr_hugefiles, RTE_STR(CONFIG_RTE_MAX_MEMSEG),
 			RTE_MAX_MEMSEG);
-		return -ENOMEM;
+		goto fail;
 	}
 
+	munmap(hugepage, nr_hugefiles * sizeof(struct hugepage_file));
+
 	return 0;
 
 fail:
 	huge_recover_sigbus();
 	free(tmp_hp);
+	if (hugepage != NULL)
+		munmap(hugepage, nr_hugefiles * sizeof(struct hugepage_file));
+
 	return -1;
 }