(generic_readchar): Tweak previous checkin, close error_fd if EOF.

diff --git a/gdb/ser-base.c b/gdb/ser-base.c
index 7afd1ee1c8c18f4cf1f426acacfd047e2e91b989..6285342e7c2cd84a6b8efe4ecdcda76af5454d37 100644 (file)
--- 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