X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=ustream.c;h=9c6180657e1e0cd746c32ac90150a507d451b0e2;hp=8e6efcda43be5eca12d2dc8b4c131928be9d9123;hb=29c066cfd60cc9101201a2c31a9aa66288288719;hpb=a9b44ebe556c3f60de2fc1154d48a26f43aa15b7

diff --git a/ustream.c b/ustream.c
index 8e6efcd..9c61806 100644
--- a/ustream.c
+++ b/ustream.c
@@ -341,7 +341,7 @@ bool ustream_write_pending(struct ustream *s)
 	if (s->write_error)
 		return false;
 
-	while (buf) {
+	while (buf && s->w.data_bytes) {
 		struct ustream_buf *next = buf->next;
 		int maxlen = buf->tail - buf->data;
 
@@ -435,6 +435,9 @@ int ustream_vprintf(struct ustream *s, const char *format, va_list arg)
 	va_list arg2;
 	int wr, maxlen, buflen;
 
+	if (s->write_error)
+		return 0;
+
 	if (!l->data_bytes) {
 		buf = alloca(MAX_STACK_BUFLEN);
 		va_copy(arg2, arg);
@@ -493,6 +496,9 @@ int ustream_printf(struct ustream *s, const char *format, ...)
 	va_list arg;
 	int ret;
 
+	if (s->write_error)
+		return 0;
+
 	va_start(arg, format);
 	ret = ustream_vprintf(s, format, arg);
 	va_end(arg);