From 59909a9c54adeb4233d799044d42c2db4565c67d Mon Sep 17 00:00:00 2001
From: Miod Vallat <miod@cvs.openbsd.org>
Date: Fri, 6 Aug 2010 00:00:42 +0000
Subject: Every time you ignore uiomove() return value, $DEITY kills a little
 $ADORABLE_FELINE.

ok deraadt@ matthew@
---
 sys/dev/ic/lpt.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'sys/dev/ic/lpt.c')

diff --git a/sys/dev/ic/lpt.c b/sys/dev/ic/lpt.c
index 9f7ba6cb891..4d2b1b50eb2 100644
--- a/sys/dev/ic/lpt.c
+++ b/sys/dev/ic/lpt.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lpt.c,v 1.6 2010/06/26 23:24:44 guenther Exp $ */
+/*	$OpenBSD: lpt.c,v 1.7 2010/08/06 00:00:41 miod Exp $ */
 /*	$NetBSD: lpt.c,v 1.42 1996/10/21 22:41:14 thorpej Exp $	*/
 
 /*
@@ -373,7 +373,9 @@ lptwrite(dev, uio, flags)
 	int error = 0;
 
 	while ((n = min(LPT_BSIZE, uio->uio_resid)) != 0) {
-		uiomove(sc->sc_cp = sc->sc_inbuf->b_data, n, uio);
+		error = uiomove(sc->sc_cp = sc->sc_inbuf->b_data, n, uio);
+		if (error != 0)
+			return error;
 		sc->sc_count = n;
 		error = lptpushbytes(sc);
 		if (error) {
-- 
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