autofs-5.0.1 - Fix LDAP result leaks on error paths

From: Leonardo Chiquitto <leonardo.lists@gmail.com>

According to ldap_search_s(3), the result structure must be freed
with ldap_msgfree() even when the search function returned failure.
---

 modules/lookup_ldap.c |    6 ++++++
 1 file changed, 6 insertions(+)


--- autofs-5.0.1.orig/modules/lookup_ldap.c
+++ autofs-5.0.1/modules/lookup_ldap.c
@@ -385,6 +385,8 @@ static int get_query_dn(unsigned logopt,
 			error(logopt,
 			      MODPREFIX "query failed for %s: %s",
 			      query, ldap_err2string(rv));
+			if (result)
+				ldap_msgfree(result);
 			return 0;
 		}
 
@@ -1581,6 +1583,8 @@ int lookup_read_master(struct master *ma
 		error(logopt, MODPREFIX "query failed for %s: %s",
 		      query, ldap_err2string(rv));
 		unbind_ldap_connection(logging, ldap, ctxt);
+		if (result)
+			ldap_msgfree(result);
 		return NSS_STATUS_NOTFOUND;
 	}
 
@@ -2583,6 +2587,8 @@ static int lookup_one(struct autofs_poin
 	if ((rv != LDAP_SUCCESS) || !result) {
 		crit(ap->logopt, MODPREFIX "query failed for %s", query);
 		unbind_ldap_connection(ap->logopt, ldap, ctxt);
+		if (result)
+			ldap_msgfree(result);
 		return CHE_FAIL;
 	}