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Diffstat (limited to 'apps/app_jack.c')
-rw-r--r--apps/app_jack.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/apps/app_jack.c b/apps/app_jack.c
index d1bdfa38f..f32c59ff0 100644
--- a/apps/app_jack.c
+++ b/apps/app_jack.c
@@ -951,6 +951,11 @@ static int jack_hook_write(struct ast_channel *chan, const char *cmd, char *data
{
int res;
+ if (!chan) {
+ ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
+ return -1;
+ }
+
if (!strcasecmp(value, "on"))
res = enable_jack_hook(chan, data);
else if (!strcasecmp(value, "off"))