From 8cf68f05ab1b13f147521ad64df34dae256e09fb Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@zsh.org>
Date: Thu, 2 Jun 2016 10:59:51 +0100
Subject: 21603: Make read_poll more interruptible.

If we interrupted the first read we still did the fallback read.
This is wrong.
---
 Src/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Src/utils.c')

diff --git a/Src/utils.c b/Src/utils.c
index 12911d3f4..95be1fb98 100644
--- a/Src/utils.c
+++ b/Src/utils.c
@@ -2534,7 +2534,7 @@ read_poll(int fd, int *readchar, int polltty, zlong microseconds)
 #endif
 #endif
 
-    if (fd >= 0 && ret < 0) {
+    if (fd >= 0 && ret < 0 && !errflag) {
 	/*
 	 * Final attempt: set non-blocking read and try to read a character.
 	 * Praise Bill, this works under Cygwin (nothing else seems to).
-- 
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