From: Zhe Tao <zhe.tao@intel.com>
Date: Mon, 21 Sep 2015 09:00:47 +0000 (+0800)
Subject: eal: fix memory leak in stack dump
X-Git-Tag: spdx-start~8362
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=faefe2296da86bb95ffbb5a8925b026dc006744c;p=dpdk.git

eal: fix memory leak in stack dump

Free the memory allocated by the backtrace_symbols
to prevent the memory leak.

Signed-off-by: Zhe Tao <zhe.tao@intel.com>
---

diff --git a/lib/librte_eal/bsdapp/eal/eal_debug.c b/lib/librte_eal/bsdapp/eal/eal_debug.c
index 44fc4f338b..907fbfa7b8 100644
--- a/lib/librte_eal/bsdapp/eal/eal_debug.c
+++ b/lib/librte_eal/bsdapp/eal/eal_debug.c
@@ -53,11 +53,17 @@ void rte_dump_stack(void)
 
 	size = backtrace(func, BACKTRACE_SIZE);
 	symb = backtrace_symbols(func, size);
+
+	if (symb == NULL)
+		return;
+
 	while (size > 0) {
 		rte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,
 			"%d: [%s]\n", size, symb[size - 1]);
 		size --;
 	}
+
+	free(symb);
 }
 
 /* not implemented in this environment */
diff --git a/lib/librte_eal/linuxapp/eal/eal_debug.c b/lib/librte_eal/linuxapp/eal/eal_debug.c
index 44fc4f338b..907fbfa7b8 100644
--- a/lib/librte_eal/linuxapp/eal/eal_debug.c
+++ b/lib/librte_eal/linuxapp/eal/eal_debug.c
@@ -53,11 +53,17 @@ void rte_dump_stack(void)
 
 	size = backtrace(func, BACKTRACE_SIZE);
 	symb = backtrace_symbols(func, size);
+
+	if (symb == NULL)
+		return;
+
 	while (size > 0) {
 		rte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,
 			"%d: [%s]\n", size, symb[size - 1]);
 		size --;
 	}
+
+	free(symb);
 }
 
 /* not implemented in this environment */