From 23eb8ff82579b94c1720f0728f9817e4a30a066f Mon Sep 17 00:00:00 2001
From: KJD <PerditionC@gmail.com>
Date: Sun, 29 Dec 2013 11:04:56 -0500
Subject: [PATCH] fix reading from NULL; sentinel lost due to conversion to
 char from int

---
 kernel/chario.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/chario.c b/kernel/chario.c
index afc30d3..eb95803 100644
--- a/kernel/chario.c
+++ b/kernel/chario.c
@@ -292,11 +292,11 @@ long cooked_read(struct dhdr FAR **pdev, size_t n, char FAR *bp)
   return xfer;
 }
 
-STATIC unsigned char read_char_sft_dev(int sft_in, int sft_out,
+STATIC unsigned read_char_sft_dev(int sft_in, int sft_out,
                                        struct dhdr FAR **pdev,
                                        BOOL check_break)
 {
-  unsigned char c;
+  unsigned c;
 
   if (*pdev)
   {