From bb653097a1e0c5c2228cafda144814c42cd05da2 Mon Sep 17 00:00:00 2001

From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>

Date: Sat, 12 Oct 2013 13:43:07 -0400

Subject: [PATCH] Make sure that we don't dereference NULL

The code was actually safe, because b should

never be null, because if rvalue is empty, a different

branch is taken. But we *do* check for NULL in the

loop above, so it's better to also check here for symmetry.

---

 src/core/load-fragment.c | 3 ++-

 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c

index 44920d6..f01843d 100644

--- a/src/core/load-fragment.c

+++ b/src/core/load-fragment.c

@@ -1860,7 +1860,8 @@ int config_parse_documentation(const char *unit,

                         free(*a);

                 }

         }

-        *b = NULL;

+        if (b)

+                *b = NULL;

         return r;

 }