diff options
Diffstat (limited to 'funcs/func_callerid.c')
| -rw-r--r-- | funcs/func_callerid.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/funcs/func_callerid.c b/funcs/func_callerid.c index 6068739d4..be3026325 100644 --- a/funcs/func_callerid.c +++ b/funcs/func_callerid.c @@ -43,7 +43,9 @@ static int callerid_read(struct ast_channel *chan, char *cmd, char *data, { char *opt = data; - /* XXX we are not always clearing the buffer. Is this correct ? */ + if (!chan) + return -1; + if (strchr(opt, '|')) { char name[80], num[80]; @@ -98,7 +100,7 @@ static int callerid_read(struct ast_channel *chan, char *cmd, char *data, static int callerid_write(struct ast_channel *chan, char *cmd, char *data, const char *value) { - if (!value) + if (!value || !chan) return -1; if (!strncasecmp("all", data, 3)) { |