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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>
This commit is contained in:
Frank Pan 2010-05-26 15:37:43 +08:00 committed by Greg Kroah-Hartman
parent fadf34f0f0
commit 962400e8fd
1 changed files with 1 additions and 1 deletions
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2
drivers/char/vt.c
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@ -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);
}