From 022e3f775700a5269e780a07a35e60c7edd49284 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Mon, 27 Dec 1993 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1993-12-27

---
 port/qio.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/port/qio.c b/port/qio.c
index e0dbf549e8081ef23c58c7911a17f26f208474d0..51068ca2e664de8af48ecb63e49cd0cb72c24860 100644
--- a/port/qio.c
+++ b/port/qio.c
@@ -538,9 +538,14 @@ qwrite(Queue *q, void *vp, int len, int nowait)
 		if(nowait)
 			return len;
 		qlock(&q->wlock);
+		if(waserror()) {
+			qunlock(&q->wlock);
+			nexterror();
+		}
 		q->state |= Qflow;
 		sleep(&q->wr, qnotfull, q);
 		qunlock(&q->wlock);
+		poperror();
 	}
 
 	x = splhi();