diff options
Diffstat (limited to 'funcs/func_callerid.c')
| -rw-r--r-- | funcs/func_callerid.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/funcs/func_callerid.c b/funcs/func_callerid.c index b4649c177..4f6a6779b 100644 --- a/funcs/func_callerid.c +++ b/funcs/func_callerid.c @@ -900,6 +900,11 @@ static int callerpres_deprecate_notify; */ static int callerpres_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) { + if (!chan) { + ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd); + return -1; + } + if (!callerpres_deprecate_notify) { callerpres_deprecate_notify = 1; ast_log(LOG_WARNING, "CALLERPRES is deprecated." @@ -926,6 +931,11 @@ static int callerpres_write(struct ast_channel *chan, const char *cmd, char *dat { int pres; + if (!chan) { + ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd); + return -1; + } + if (!callerpres_deprecate_notify) { callerpres_deprecate_notify = 1; ast_log(LOG_WARNING, "CALLERPRES is deprecated." |