From 17c2c4219df2a8fec4c2f46f718a3fbbbfebe50a Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 27 Oct 2015 09:18:06 +0000
Subject: [PATCH] The format callback may not always succeed, so we need to
 check for NULL. From Patrick Palka.

---
 format.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/format.c b/format.c
index 7ff11b59..0d7d7c20 100644
--- a/format.c
+++ b/format.c
@@ -643,6 +643,8 @@ format_find(struct format_tree *ft, const char *key, int modifiers)
 	return (NULL);
 
 found:
+	if (found == NULL)
+		return (NULL);
 	copy = xstrdup(found);
 	if (modifiers & FORMAT_BASENAME) {
 		saved = copy;