diff options
Diffstat (limited to 'drivers/video/console/vgacon.c')
| -rw-r--r-- | drivers/video/console/vgacon.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 3556268fe0a..448d209a0bf 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -239,8 +239,7 @@ static void vgacon_restore_screen(struct vc_data *c) static int vgacon_scrolldelta(struct vc_data *c, int lines) { - int start, end, count, soff, diff; - void *d, *s; + int start, end, count, soff; if (!lines) { c->vc_visible_origin = c->vc_origin; @@ -287,13 +286,13 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines) if (count > c->vc_rows) count = c->vc_rows; - diff = c->vc_rows - count; - - d = (void *) c->vc_origin; - s = (void *) c->vc_screenbuf; - if (count) { int copysize; + + int diff = c->vc_rows - count; + void *d = (void *) c->vc_origin; + void *s = (void *) c->vc_screenbuf; + count *= c->vc_size_row; /* how much memory to end of buffer left? */ copysize = min(count, vgacon_scrollback_size - soff); @@ -305,14 +304,11 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines) scr_memcpyw(d, vgacon_scrollback, count); d += count; } - } - if (diff == c->vc_rows) { - vgacon_cursor(c, CM_MOVE); - } else { if (diff) scr_memcpyw(d, s, diff * c->vc_size_row); - } + } else + vgacon_cursor(c, CM_MOVE); return 1; } |