From a218437cf4f7a573a4ac7050a0d2a9c98c014528 Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@hadess.net>
Date: Wed, 12 Dec 2018 17:24:45 +0100
Subject: [PATCH] mindtct: Fix uninitialised value usage in
 count_minutia_ridges()

libfprint/nbis/mindtct/ridges.c:153:7: warning: 1st function call argument is an uninitialized value
      free(nbr_list);
      ^~~~~~~~~~~~~~
---
 libfprint/nbis/mindtct/ridges.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libfprint/nbis/mindtct/ridges.c b/libfprint/nbis/mindtct/ridges.c
index b5b7f2c4..f411bc5b 100644
--- a/libfprint/nbis/mindtct/ridges.c
+++ b/libfprint/nbis/mindtct/ridges.c
@@ -148,9 +148,11 @@ int count_minutia_ridges(const int first, MINUTIAE *minutiae,
    int i, ret, *nbr_list, *nbr_nridges, nnbrs;
 
    /* Find up to the maximum number of qualifying neighbors. */
+   nbr_list = NULL;
    if((ret = find_neighbors(&nbr_list, &nnbrs, lfsparms->max_nbrs,
                            first, minutiae))){
-      free(nbr_list);
+      if (nbr_list != NULL)
+         free(nbr_list);
       return(ret);
    }