From 83cf034c20137a81dbd4b3572467b7b1f2f6929f Mon Sep 17 00:00:00 2001
From: jaybeepee <jason.penton@gmail.com>
Date: Wed, 28 Sep 2016 17:36:42 +0200
Subject: [PATCH] modules/presence: prevent segfault on deref. of empty
 hashtable entry list

---
 modules/presence/hash.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/presence/hash.c b/modules/presence/hash.c
index bfce59da387..32f1f94abd1 100644
--- a/modules/presence/hash.c
+++ b/modules/presence/hash.c
@@ -112,7 +112,7 @@ subs_t* search_shtable(shtable_t htable,str callid,str to_tag,
 {
 	subs_t* s;
 
-	s= htable[hash_code].entries->next;
+	s= htable[hash_code].entries?htable[hash_code].entries->next:NULL;
 
 	while(s)
 	{
@@ -292,7 +292,7 @@ int delete_shtable(shtable_t htable,unsigned int hash_code,subs_t* subs)
 	lock_get(&htable[hash_code].lock);
 	
 	ps= htable[hash_code].entries;
-	s= ps->next;
+	s= ps?ps->next:NULL;
 		
 	while(s)
 	{