From: Jo-Philipp Wich <jow@openwrt.org>
Date: Mon, 28 Jul 2014 11:58:02 +0000 (+0200)
Subject: uclient-http: only invoke data_sent callback if it is provided
X-Git-Url: http://git.openwrt.org/?p=project%2Fuclient.git;a=commitdiff_plain;h=754ca1bbb0d59a0d2873bb1996307cd92bbf2238

uclient-http: only invoke data_sent callback if it is provided

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
---

diff --git a/uclient-http.c b/uclient-http.c
index 4633956..1569cda 100644
--- a/uclient-http.c
+++ b/uclient-http.c
@@ -657,7 +657,9 @@ static void __uclient_notify_read(struct uclient_http *uh)
 static void __uclient_notify_write(struct uclient_http *uh)
 {
 	struct uclient *uc = &uh->uc;
-	uc->cb->data_sent(uc);
+
+	if (uc->cb->data_sent)
+		uc->cb->data_sent(uc);
 }
 
 static void uclient_notify_read(struct ustream *us, int bytes)