From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 24 Oct 2014 12:44:34 +0000 (+0200)
Subject: system-linux: fix a glob related memleak
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=commitdiff_plain;h=9af0e57ce2c76db2ce49ea9fbfb5766da6000ec6

system-linux: fix a glob related memleak

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---

diff --git a/system-linux.c b/system-linux.c
index 7ae9e27..057bc39 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -443,17 +443,18 @@ static bool system_is_bridge(const char *name, char *buf, int buflen)
 static char *system_get_bridge(const char *name, char *buf, int buflen)
 {
 	char *path;
-	ssize_t len;
+	ssize_t len = -1;
 	glob_t gl;
 
 	snprintf(buf, buflen, "/sys/devices/virtual/net/*/brif/%s/bridge", name);
 	if (glob(buf, GLOB_NOSORT, NULL, &gl) < 0)
 		return NULL;
 
-	if (gl.gl_pathc == 0)
-		return NULL;
+	if (gl.gl_pathc > 0)
+		len = readlink(gl.gl_pathv[0], buf, buflen);
+
+	globfree(&gl);
 
-	len = readlink(gl.gl_pathv[0], buf, buflen);
 	if (len < 0)
 		return NULL;