From: David Herrmann <dh.herrmann@gmail.com>
Date: Fri, 17 Jul 2015 10:18:13 +0000 (+0200)
Subject: bitmap: allow bitmap_iterate() on NULL bitmap
X-Git-Tag: v223~85^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=22cedfe15fda59106b890ae2c646de96aa18a5eb;p=thirdparty%2Fsystemd.git

bitmap: allow bitmap_iterate() on NULL bitmap

Make sure we properly treat NULL bitmaps as empty. Right now, we don't
(which really looks like a typo).
---

diff --git a/src/basic/bitmap.c b/src/basic/bitmap.c
index d559be1bbbb..83448ca93c6 100644
--- a/src/basic/bitmap.c
+++ b/src/basic/bitmap.c
@@ -152,7 +152,7 @@ bool bitmap_iterate(Bitmap *b, Iterator *i, unsigned *n) {
         long long bitmask;
         unsigned offset, rem;
 
-        if (!b && i->idx == BITMAP_END)
+        if (!b || i->idx == BITMAP_END)
                 return false;
 
         offset = BITMAP_NUM_TO_OFFSET(i->idx);