From 4fa58ef6628dcf2c4dcbf3625a235ae44ba5e95c Mon Sep 17 00:00:00 2001
From: Zdenek Dohnal <zdohnal@redhat.com>
Date: Wed, 26 Jul 2023 10:22:31 +0200
Subject: [PATCH] src/scanadf.c: Fix segfault when `scanadf -h -d <device>`

scanadf segfaults when printing help for a specific device, because
device handle is closed before `scanadf_exit()`, but not set to NULL.

Fixes Fedora bugzilla 2225209
---
 src/scanadf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/scanadf.c b/src/scanadf.c
index 0dab19b..b1fe2be 100644
--- a/src/scanadf.c
+++ b/src/scanadf.c
@@ -1672,7 +1672,10 @@ Type ``%s --help -d DEVICE'' to get list of all options for DEVICE.\n\
 \n\
 List of available devices:", prog_name);
       if (device)
+	{
 	  sane_close(device);
+	  device = NULL;
+	}
 
       status = sane_get_devices (&device_list, SANE_FALSE);
       if (status == SANE_STATUS_GOOD)
-- 
2.41.0