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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
To: James Simmons <jsimmons@infradead.org>
Cc: Linux Frame Buffer Device Development 
	<linux-fbdev-devel@lists.sourceforge.net>,
	Cell Broadband Engine OSS Development  <cbe-oss-dev@ozlabs.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/7] fbdev: Avoid vertical overflow when making space for the logo
Date: Wed, 31 Jan 2007 13:43:55 +0100 (CET)	[thread overview]
Message-ID: <Pine.LNX.4.62.0701311328170.15066@pademelon.sonytel.be> (raw)
In-Reply-To: <Pine.LNX.4.62.0701311325480.14996@pademelon.sonytel.be>

fbcon_prepare_logo(): Avoid vertical overflow when making space for the logo

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
---
 drivers/video/console/fbcon.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

--- ps3-linux-2.6.20-rc7.orig/drivers/video/console/fbcon.c
+++ ps3-linux-2.6.20-rc7/drivers/video/console/fbcon.c
@@ -619,8 +619,13 @@ static void fbcon_prepare_logo(struct vc
 			r -= cols;
 		}
 		if (!save) {
-			vc->vc_y += logo_lines;
-			vc->vc_pos += logo_lines * vc->vc_size_row;
+			int lines;
+			if (vc->vc_y + logo_lines >= rows)
+				lines = rows - vc->vc_y - 1;
+			else
+				lines = logo_lines;
+			vc->vc_y += lines;
+			vc->vc_pos += lines * vc->vc_size_row;
 		}
 	}
 	scr_memsetw((unsigned short *) vc->vc_origin,

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- Sony Network and Software Technology Center Europe (NSCE)
Geert.Uytterhoeven@sonycom.com ------- The Corporate Village, Da Vincilaan 7-D1
Voice +32-2-7008453 Fax +32-2-7008622 ---------------- B-1935 Zaventem, Belgium

  parent reply	other threads:[~2007-01-31 12:43 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-31 12:27 [PATCH 0/7] RFC: Cell SPE logos Geert Uytterhoeven
2007-01-31 12:40 ` Geert Uytterhoeven
2007-01-31 12:43 ` Geert Uytterhoeven [this message]
2007-01-31 12:43 ` [PATCH 2/7] fbdev: fb_do_show_logo() updates Geert Uytterhoeven
2007-01-31 12:44 ` [PATCH 3/7] fbdev: extract fb_show_logo_line() Geert Uytterhoeven
2007-01-31 12:44 ` [PATCH 4/7] fbdev: move logo externs to header file Geert Uytterhoeven
2007-03-13 14:00   ` const and __initdata (was: Re: [Linux-fbdev-devel] [PATCH 4/7] fbdev: move logo externs to header file) Geert Uytterhoeven
2007-01-31 12:44 ` [PATCH 5/7] fbdev: Add fb_append_extra_logo() Geert Uytterhoeven
2007-01-31 12:44 ` [PATCH 6/7] fbdev: SPE helper penguin logo Geert Uytterhoeven
2007-01-31 12:44 ` [PATCH 7/7] Cell: Draw SPE helper penguin logos Geert Uytterhoeven
2007-02-01 16:51 ` [Cbe-oss-dev] [PATCH 0/7] RFC: Cell SPE logos Geoff Levand
2007-02-04 13:32 ` Pavel Machek
2007-02-04 17:44   ` [Linux-fbdev-devel] " Geert Uytterhoeven
2007-02-05  2:14   ` [Cbe-oss-dev] " Benjamin Herrenschmidt
2007-02-06 21:42     ` [Linux-fbdev-devel] " James Simmons
2007-02-07 12:44     ` Pavel Machek
2007-02-06 22:06 ` James Simmons
2007-02-12 13:54 ` Geert Uytterhoeven
2007-02-13 20:51   ` James Simmons
2007-02-14 17:33     ` Geert Uytterhoeven

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