Commit 962400e8 authored May 26, 2010 by Frank Pan Committed by Greg Kroah-Hartman Jun 04, 2010

tty: fix a little bug in scrup, vt.c



The code uses vc->vc_cols instead of vc->vc_size_row by mistake, it
will cause half of the region which is going to clear remain
uncleared.
The issue happens in background consoles, so it's hard to observe.

Frank Pan

Signed-off-by: Frank Pan <frankpzh@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent fadf34f0

drivers/char/vt.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -304,7 +304,7 @@ static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
		d = (unsigned short )(vc->vc_origin + vc->vc_size_row t);
		s = (unsigned short )(vc->vc_origin + vc->vc_size_row (t + nr));
		scr_memmovew(d, s, (b - t - nr) * vc->vc_size_row);
		scr_memsetw(d + (b - t - nr) * vc->vc_cols, vc->vc_video_erase_char,
		scr_memsetw(d + (b - t - nr) * vc->vc_size_row, vc->vc_video_erase_char,
		vc->vc_size_row * nr);
		}

Admin message