From 1d6b5602381524c339af2c2fdfe42ad0a01464a4 Mon Sep 17 00:00:00 2001
From: Latchesar Ionkov <lucho@ionkov.net>
Date: Wed, 11 Jul 2007 15:14:46 -0600
Subject: net/9p: set error to EREMOTEIO if trans->write returns zero

If trans->write returns 0, p9_write_work goes through the error path, but
sets the error code to zero.

This patch sets the error code to EREMOTEIO if trans->write returns zero
value.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>

diff --git a/net/9p/mux.c b/net/9p/mux.c
index c3aa87b..acb0388 100644
--- a/net/9p/mux.c
+++ b/net/9p/mux.c
@@ -505,8 +505,12 @@ again:
 		return;
 	}
 
-	if (err <= 0)
+	if (err < 0)
+		goto error;
+	else if (err == 0) {
+		err = -EREMOTEIO;
 		goto error;
+	}
 
 	m->wpos += err;
 	if (m->wpos == m->wsize)
-- 
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