Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753184AbcKYIcL (ORCPT ); Fri, 25 Nov 2016 03:32:11 -0500 Received: from mx2.suse.de ([195.135.220.15]:45213 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752756AbcKYIbS (ORCPT ); Fri, 25 Nov 2016 03:31:18 -0500 X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "References" From: Jiri Slaby To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jiri Slaby , =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= Subject: [PATCH 3.12 047/127] tty: vt, fix bogus division in csi_J Date: Fri, 25 Nov 2016 09:29:20 +0100 Message-Id: X-Mailer: git-send-email 2.10.2 In-Reply-To: References: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1162 Lines: 36 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit 42acfc6615f47e465731c263bee0c799edb098f2 upstream. In csi_J(3), the third parameter of scr_memsetw (vc_screenbuf_size) is divided by 2 inappropriatelly. But scr_memsetw expects size, not count, because it divides the size by 2 on its own before doing actual memset-by-words. So remove the bogus division. Signed-off-by: Jiri Slaby Cc: Petr Písař Fixes: f8df13e0a9 (tty: Clean console safely) Signed-off-by: Jiri Slaby --- drivers/tty/vt/vt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 60ce423c6364..75c059c56a23 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1169,7 +1169,7 @@ static void csi_J(struct vc_data *vc, int vpar) break; case 3: /* erase scroll-back buffer (and whole display) */ scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char, - vc->vc_screenbuf_size >> 1); + vc->vc_screenbuf_size); set_origin(vc); if (CON_IS_VISIBLE(vc)) update_screen(vc); -- 2.10.2