From 9f117f472395074ea657a89049faf2cbb250538f Mon Sep 17 00:00:00 2001
From: Doug Evans <dje@google.com>
Date: Tue, 20 Apr 2010 06:06:38 +0000
Subject: [PATCH] (generic_readchar): Tweak previous checkin, close error_fd if
 EOF.

---
 gdb/ser-base.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gdb/ser-base.c b/gdb/ser-base.c
index 7afd1ee1c8..6285342e7c 100644
--- a/gdb/ser-base.c
+++ b/gdb/ser-base.c
@@ -361,8 +361,15 @@ generic_readchar (struct serial *scb, int timeout,
 	    break;
 
 	  s = read (scb->error_fd, &buf, to_read);
-	  if (s <= 0)
+	  if (s == -1)
 	    break;
+	  if (s == 0)
+	    {
+	      /* EOF */
+	      close (scb->error_fd);
+	      scb->error_fd = -1;
+	      break;
+	    }
 
 	  /* In theory, embedded newlines are not a problem.
 	     But for MI, we want each output line to have just
-- 
2.34.1