[sr-dev] git:3.1: dialog(k): destroy dlg structure first time ref counter gets to 0

Module: sip-router Branch: 3.1 Commit: cfb85a6064592f491edf17bf6500618f279aaa05 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=cfb85a6… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: Tue Nov 22 11:30:56 2011 +0100 dialog(k): destroy dlg structure first time ref counter gets to 0 - reported by Bayan Towfix, FS#173 (cherry picked from commit 5949e296b7bafab42a4ac3261f453f286d98e41c) (cherry picked from commit ae248a3744ab06a61c962415a8ac55a9c53fba82) --- modules_k/dialog/dlg_hash.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/modules_k/dialog/dlg_hash.c b/modules_k/dialog/dlg_hash.c index 03754c0..9242bbc 100644 --- a/modules_k/dialog/dlg_hash.c +++ b/modules_k/dialog/dlg_hash.c @@ -92,6 +92,11 @@ struct dlg_table *d_table = 0; */ #define unref_dlg_unsafe(_dlg,_cnt,_d_entry) \ do { \ + if((_dlg)->ref <= 0 ) { \ + LM_WARN("invalid unref'ing dlg %p with ref %d by %d\n",\ + (_dlg),(_dlg)->ref,(_cnt));\ + break; \ + } \ (_dlg)->ref -= (_cnt); \ LM_DBG("unref dlg %p with %d -> %d\n",\ (_dlg),(_cnt),(_dlg)->ref);\