From ef647a54c006a2a748463c81132c22ecb01d2dac Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Thu, 16 Apr 2015 16:07:36 +0200
Subject: kernel: cannot interrupt segmentio commands

once we submit a command to segmentio process, we have to wait
for it to complete even if we got interrupted.
---
 sys/src/9/port/segment.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'sys/src/9/port/segment.c')

diff --git a/sys/src/9/port/segment.c b/sys/src/9/port/segment.c
index 3bf5c1079..299d8c96b 100644
--- a/sys/src/9/port/segment.c
+++ b/sys/src/9/port/segment.c
@@ -799,8 +799,11 @@ docmd(Segio *sio, int cmd)
 {
 	sio->err = nil;
 	sio->cmd = cmd;
+	while(waserror())
+		;
 	wakeup(&sio->cmdwait);
 	sleep(&sio->replywait, cmddone, sio);
+	poperror();
 	if(sio->err != nil)
 		error(sio->err);
 }
-- 
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