Commit 97d362ac authored by Jiri Slaby's avatar Jiri Slaby Committed by Ben Hutchings

tty: vt, fix bogus division in csi_J

commit 42acfc66 upstream.

In csi_J(3), the third parameter of scr_memsetw (vc_screenbuf_size) is
divided by 2 inappropriatelly. But scr_memsetw expects size, not
count, because it divides the size by 2 on its own before doing actual
memset-by-words.

So remove the bogus division.
Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Cc: Petr Písař <ppisar@redhat.com>
Fixes: f8df13e0 (tty: Clean console safely)
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
parent 7a3143ac
......@@ -1197,7 +1197,7 @@ static void csi_J(struct vc_data *vc, int vpar)
break;
case 3: /* erase scroll-back buffer (and whole display) */
scr_memsetw(vc->vc_screenbuf, vc->vc_video_erase_char,
vc->vc_screenbuf_size >> 1);
vc->vc_screenbuf_size);
set_origin(vc);
if (CON_IS_VISIBLE(vc))
update_screen(vc);
......
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