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authorMalcom Parsons <malcolm.parsons@gmail.com>2006-06-08 00:43:42 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-08 15:12:21 -0700
commit26e780e8ef1cc3ef581a07aafe2346bb5a07b4f9 (patch)
treeb62f2e5aceddd69e0671971bc84b709a5a9e3c26
parent45b35a5ced474b9fbbbfcfd5cf346c432d28d9fd (diff)
downloadlinux-0-day-26e780e8ef1cc3ef581a07aafe2346bb5a07b4f9.tar.gz
[PATCH] fbcon: fix limited scroll in SCROLL_PAN_REDRAW mode
From: Malcom Parsons <malcolm.parsons@gmail.com> When scrolling up in SCROLL_PAN_REDRAW mode with a large limited scroll region, the bottom few lines have to be redrawn. Without this patch, the wrong text is drawn into these lines, corrupting the display. Observed in 2.6.14 when running an IRC client in the Nintendo DS linux port. I haven't tested if scrolling down has the same problem. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/video/console/fbcon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 953eb8c..47ba1a7 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -1745,7 +1745,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
fbcon_redraw_move(vc, p, 0, t, count);
ypan_up_redraw(vc, t, count);
if (vc->vc_rows - b > 0)
- fbcon_redraw_move(vc, p, b - count,
+ fbcon_redraw_move(vc, p, b,
vc->vc_rows - b, b);
} else
fbcon_redraw_move(vc, p, t + count, b - t - count, t);