From 2b54989e6f1f51020a5526704da72d48aa4aea96 Mon Sep 17 00:00:00 2001
From: Adam Sutton <dev@adamsutton.me.uk>
Date: Tue, 27 May 2014 10:06:39 +0100
Subject: [PATCH] api: fix crash on passing on no subsystem

---
 src/api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/api.c b/src/api.c
index f88c2095..7af71828 100644
--- a/src/api.c
+++ b/src/api.c
@@ -68,7 +68,7 @@ api_exec ( const char *subsystem, htsmsg_t *args, htsmsg_t **resp )
   const char *op;
 
   /* Args and response must be set */
-  if (!args || !resp)
+  if (!args || !resp || !subsystem)
     return EINVAL;
 
   // Note: there is no locking while checking the hook tree, its assumed