diff options
Diffstat (limited to 'apps/app_stack.c')
| -rw-r--r-- | apps/app_stack.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/apps/app_stack.c b/apps/app_stack.c index db335c507..72caed8cb 100644 --- a/apps/app_stack.c +++ b/apps/app_stack.c @@ -708,6 +708,11 @@ static int local_read(struct ast_channel *chan, const char *cmd, char *data, cha struct gosub_stack_frame *frame; struct ast_var_t *variables; + if (!chan) { + ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd); + return -1; + } + ast_channel_lock(chan); if (!(stack_store = ast_channel_datastore_find(chan, &stack_info, NULL))) { ast_channel_unlock(chan); @@ -742,6 +747,11 @@ static int local_write(struct ast_channel *chan, const char *cmd, char *var, con struct gosub_stack_list *oldlist; struct gosub_stack_frame *frame; + if (!chan) { + ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd); + return -1; + } + ast_channel_lock(chan); if (!(stack_store = ast_channel_datastore_find(chan, &stack_info, NULL))) { ast_log(LOG_ERROR, "Tried to set LOCAL(%s), but we aren't within a Gosub routine\n", var); |