From cadf5a9b1a9e62829fe630b474d91c5a94c4e68a Mon Sep 17 00:00:00 2001
From: Olaf Meeuwissen <paddy-hack@member.fsf.org>
Date: Sat, 15 Jun 2019 14:45:36 +0900
Subject: [PATCH] Prevent segfault in case strndup cannot allocate memory

This complements 18f9e5598c224e90554d333b7f9f05ba8fa14ad0
---
 backend/dll.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/backend/dll.c b/backend/dll.c
index c275557c9..8f0983d03 100644
--- a/backend/dll.c
+++ b/backend/dll.c
@@ -1191,6 +1191,9 @@ sane_open (SANE_String_Const full_name, SANE_Handle * meta_handle)
       dev_name = "";
     }
 
+  if (!be_name)
+    return SANE_STATUS_NO_MEM;
+
   if (!be_name[0])
     be = first_backend;
   else