From b83308461bf4864b00290376a67168f2c303c219 Mon Sep 17 00:00:00 2001
From: Omar Kallel <omar.kallel@pivasoftware.com>
Date: Wed, 30 Jun 2021 10:31:53 +0100
Subject: [PATCH] Fix segmentation fault in case the backup tree is not
 initialized

---
 backupSession.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/backupSession.c b/backupSession.c
index 7606633..2e30c23 100644
--- a/backupSession.c
+++ b/backupSession.c
@@ -172,7 +172,8 @@ void bkp_tree_clean(void)
 void bkp_session_save()
 {
 	FILE *fp;
-
+	if (!bkp_tree)
+		return;
 	pthread_mutex_lock(&mutex_backup_session);
 	fp = fopen(CWMP_BKP_FILE, "w");
 	mxmlSaveFile(bkp_tree, fp, MXML_NO_CALLBACK);
@@ -200,7 +201,8 @@ mxml_node_t *bkp_session_node_found(mxml_node_t *tree, char *name, struct search
 	mxml_node_t *b = tree, *c, *d;
 	struct search_keywords;
 	int i = 0;
-
+	if (!tree)
+		return NULL;
 	b = mxmlFindElement(b, b, name, NULL, NULL, MXML_DESCEND_FIRST);
 	while (b) {
 		if (b && b->child) {