diff options
| author | kpfleming <kpfleming@f38db490-d61c-443f-a65b-d21fe96a405b> | 2009-06-17 12:05:38 +0000 |
|---|---|---|
| committer | kpfleming <kpfleming@f38db490-d61c-443f-a65b-d21fe96a405b> | 2009-06-17 12:05:38 +0000 |
| commit | a0dc5cf5f2da64ac99f29c6af87fdf315736f2dc (patch) | |
| tree | d7dab931fde665625f8437a49282af03bfc59197 /include | |
| parent | 287a9494000cd6fc93bd531eb0f1715e796073b5 (diff) | |
Merged revisions 201262 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk
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r201262 | kpfleming | 2009-06-17 07:04:17 -0500 (Wed, 17 Jun 2009) | 15 lines
Merged revisions 201261 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4
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r201261 | kpfleming | 2009-06-17 07:03:25 -0500 (Wed, 17 Jun 2009) | 9 lines
Correct AST_LIST_APPEND_LIST behavior when list to be appended is empty.
When the list to be appended is empty, and the list to be appended to is *not*,
AST_LIST_APPEND_LIST would actually cause the target list to become broken,
and no longer have a pointer to its last entry. This patch fixes the problem.
(reported by Stanislaw Pitucha on the asterisk-dev mailing list)
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git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.6.1@201264 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'include')
| -rw-r--r-- | include/asterisk/linkedlists.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/include/asterisk/linkedlists.h b/include/asterisk/linkedlists.h index 52d1c5304..1ee524301 100644 --- a/include/asterisk/linkedlists.h +++ b/include/asterisk/linkedlists.h @@ -765,15 +765,18 @@ struct { \ * calling this macro (the list entries are \b moved to the target list). */ #define AST_LIST_APPEND_LIST(head, list, field) do { \ - if (!(head)->first) { \ + if (!(list)->first) { \ + break; \ + } \ + if (!(head)->first) { \ (head)->first = (list)->first; \ (head)->last = (list)->last; \ - } else { \ + } else { \ (head)->last->field.next = (list)->first; \ (head)->last = (list)->last; \ - } \ - (list)->first = NULL; \ - (list)->last = NULL; \ + } \ + (list)->first = NULL; \ + (list)->last = NULL; \ } while (0) #define AST_RWLIST_APPEND_LIST AST_LIST_APPEND_LIST |