vt/fbcon: update scrl_erase_char after 256/512-glyph font switch

Addendum to commit c9e587abfdec2c2aaa55fab83bcb4972e2f84f9b ("vt: fix
background color on line feed").

vc->vc_scrl_erase_char was not updated when fbcon switches between
256- and 512-glyph fonts.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index ad31983b43eb..b9703c17b5e8 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2507,6 +2507,9 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
                         c = vc->vc_video_erase_char;
                         vc->vc_video_erase_char =
                             ((c & 0xfe00) >> 1) | (c & 0xff);
+                        c = vc->vc_def_color;
+                        vc->vc_scrl_erase_char =
+                            ((c & 0xFE00) >> 1) | (c & 0xFF);
                         vc->vc_attr >>= 1;
                 }
         } else if (!vc->vc_hi_font_mask && cnt == 512) {
@@ -2537,9 +2540,14 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
                         if (vc->vc_can_do_color) {
                                 vc->vc_video_erase_char =
                                     ((c & 0xff00) << 1) | (c & 0xff);
+                                c = vc->vc_def_color;
+                                vc->vc_scrl_erase_char =
+                                    ((c & 0xFF00) << 1) | (c & 0xFF);
                                 vc->vc_attr <<= 1;
-                        } else
+                        } else {
                                 vc->vc_video_erase_char = c & ~0x100;
+                                vc->vc_scrl_erase_char = c & ~0x100;
+                        }
                 }
 
         }