Fix memory leak in pbx_dundi

pbx_dundi added an io context without removing
it. This caused a memory leak when the module was
unloaded.

(closes ASTERISK-21718)
Reported by Corey Farrell
Patches:
	pbx_dundi-ast_io_remove.patch uploaded by Corey Farrell (License #5909)
........

Merged revisions 388376 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 388378 from http://svn.asterisk.org/svn/asterisk/branches/11

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@388380 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/pbx/pbx_dundi.c b/pbx/pbx_dundi.c
index 6e5dc16..3c97047 100644 (file)
--- a/pbx/pbx_dundi.c
+++ b/pbx/pbx_dundi.c
@@ -2178,7 +2178,7 @@ static void *network_thread(void *ignore)
           from the network, and queue them for delivery to the channels */
        int res;
        /* Establish I/O callback for socket read */
-       ast_io_add(io, netsocket, socket_read, AST_IO_IN, NULL);
+       int *socket_read_id = ast_io_add(io, netsocket, socket_read, AST_IO_IN, NULL);
 
        while (!dundi_shutdown) {
                res = ast_sched_wait(sched);
@@ -2193,6 +2193,7 @@ static void *network_thread(void *ignore)
                check_password();
        }
 
+       ast_io_remove(io, socket_read_id);
        netthreadid = AST_PTHREADT_NULL;
 
        return NULL;