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res_musiconhold.c: Release any format refs before memset().

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* Clear the channel music_state pointer before destroying the music_state
object for safety.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@422037 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2014-08-25 16:44:37 +00:00
parent d6ea6f5848
commit 00ffbc40e1
1 changed files with 6 additions and 2 deletions
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8
res/res_musiconhold.c
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@@ -479,6 +479,8 @@ static void *moh_files_alloc(struct ast_channel *chan, void *params)
/* Resume MOH from where we left off last time or start from scratch? */
if (state->save_total != class->total_files || strcmp(state->name, class->name) != 0) {
/* Start MOH from scratch. */
ao2_cleanup(state->origwfmt);
ao2_cleanup(state->mohwfmt);
memset(state, 0, sizeof(*state));
if (ast_test_flag(class, MOH_RANDOMIZE) && class->total_files) {
state->pos = ast_random() % class->total_files;
@@ -974,6 +976,8 @@ static void *moh_alloc(struct ast_channel *chan, void *params)
mohclass_unref(state->class, "Uh Oh. Restarting MOH with an active class");
ast_log(LOG_WARNING, "Uh Oh. Restarting MOH with an active class\n");
}
ao2_cleanup(state->origwfmt);
ao2_cleanup(state->mohwfmt);
memset(state, 0, sizeof(*state));
}
@@ -1304,6 +1308,7 @@ static void local_ast_moh_cleanup(struct ast_channel *chan)
struct moh_files_state *state = ast_channel_music_state(chan);
if (state) {
ast_channel_music_state_set(chan, NULL);
if (state->class) {
/* This should never happen. We likely just leaked some resource. */
state->class =
@@ -1312,8 +1317,7 @@ static void local_ast_moh_cleanup(struct ast_channel *chan)
}
ao2_cleanup(state->origwfmt);
ao2_cleanup(state->mohwfmt);
ast_free(ast_channel_music_state(chan));
ast_channel_music_state_set(chan, NULL);
ast_free(state);
/* Only held a module reference if we had a music state */
ast_module_unref(ast_module_info->self);
}