From 7c5e875399c1b9f19ab8e52474bfe546261f8ceb Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Tue, 23 Oct 2018 11:28:28 -0400 Subject: [PATCH] vt: fix broken display when running aptitude If you run aptitude on framebuffer console, the display is corrupted. The corruption is caused by the commit 20040f30. The patch adds "offset" to "start" when calling scr_memsetw, but it forgets to do the same addition on a subsequent call to do_update_region. Signed-off-by: Mikulas Patocka Fixes: 20040f30f0ba ("vt: preserve unicode values corresponding to screen characters") Reviewed-by: Nicolas Pitre Cc: stable@vger.kernel.org # 4.19 Signed-off-by: Greg Kroah-Hartman --- 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 5f1183b0b89df..476ec4b1b86cd 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -1551,7 +1551,7 @@ static void csi_K(struct vc_data *vc, int vpar) scr_memsetw(start + offset, vc->vc_video_erase_char, 2 * count); vc->vc_need_wrap = 0; if (con_should_update(vc)) - do_update_region(vc, (unsigned long) start, count); + do_update_region(vc, (unsigned long)(start + offset), count); } static void csi_X(struct vc_data *vc, int vpar) /* erase the following vpar positions */ -- 2.39.5