From: John Crispin <john@phrozen.org>
Date: Wed, 3 Jan 2018 10:52:56 +0000 (+0100)
Subject: fix invalid close() call
X-Git-Url: http://git.openwrt.org/?p=project%2Fubus.git;a=commitdiff_plain;h=d57907c2b30170bdab7d59a4fad6e514f1861bbb

fix invalid close() call

valgrind complained about this one

==18632== Warning: invalid file descriptor -1 in syscall close()
==18632==    at 0x5326D20: __close_nocancel (syscall-template.S:84)
==18632==    by 0x5046C02: ubus_process_invoke (libubus-obj.c:98)
==18632==    by 0x5046DC3: ubus_process_obj_msg (libubus-obj.c:142)
==18632==    by 0x5045E98: ubus_process_msg (libubus.c:106)
==18632==    by 0x50468D0: ubus_handle_data (libubus-io.c:314)
==18632==    by 0x4E3D125: uloop_run_events (uloop.c:198)
==18632==    by 0x4E3D125: uloop_run_timeout (uloop.c:555)
==18632==    by 0x109BEF: uloop_run (uloop.h:111)
==18632==    by 0x109BEF: main (main.c:25)

Signed-off-by: John Crispin <john@phrozen.org>
---

diff --git a/libubus-obj.c b/libubus-obj.c
index 9261b83..b301965 100644
--- a/libubus-obj.c
+++ b/libubus-obj.c
@@ -95,7 +95,8 @@ found:
 	ret = obj->methods[method].handler(ctx, obj, &req,
 					   blob_data(attrbuf[UBUS_ATTR_METHOD]),
 					   attrbuf[UBUS_ATTR_DATA]);
-	close(req.req_fd);
+	if (req.req_fd >= 0)
+		close(req.req_fd);
 	if (req.deferred || no_reply)
 		return;