From 840c8c353931bf7f1a623119e1b8532a1cd7c73f Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Tue, 16 Jan 2001 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 2001-01-16

---
 port/cis.c      | 3 ++-
 port/unthwack.c | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/port/cis.c b/port/cis.c
index 9f3b8ef59745a8cfdde933f88f47b2dd95c565de..0cf824c44d2c4751c19b38b8dd8c7d977d0f46fd 100644
--- a/port/cis.c
+++ b/port/cis.c
@@ -214,7 +214,8 @@ nanoamps(Cisdat *cis)
 }
 
 /*
- *  only nominal voltage is important for config
+ * only nominal voltage (feature 1) is important for config,
+ * other features must read card to stay in sync.
  */
 static ulong
 power(Cisdat *cis)
diff --git a/port/unthwack.c b/port/unthwack.c
index 4ea74af18be783ac1bb1aad47cdfc2f8cf7e37fd..f0faae362a7be898129e882b0a76d3d14cd7c068 100644
--- a/port/unthwack.c
+++ b/port/unthwack.c
@@ -168,6 +168,8 @@ unthwack(Unthwack *ut, uchar *dst, int ndst, uchar *src, int nsrc, ulong seq)
 					lit = (lit - 64) & 0xff;
 				}
 			}
+			if(d >= dmax)
+				return -1;
 			*d++ = lit;
 			lithist = (lithist << 1) | (lit < 32) | (lit > 127);
 			blocks->maxoff++;