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path: root/drivers/video/console/fbcon_ud.c
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Diffstat (limited to 'drivers/video/console/fbcon_ud.c')
-rw-r--r--drivers/video/console/fbcon_ud.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/video/console/fbcon_ud.c b/drivers/video/console/fbcon_ud.c
index c4d7c89..9dd059e 100644
--- a/drivers/video/console/fbcon_ud.c
+++ b/drivers/video/console/fbcon_ud.c
@@ -420,13 +420,15 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info,
int ud_update_start(struct fb_info *info)
{
struct fbcon_ops *ops = info->fbcon_par;
- u32 xoffset, yoffset;
+ int xoffset, yoffset;
u32 vyres = GETVYRES(ops->p->scrollmode, info);
u32 vxres = GETVXRES(ops->p->scrollmode, info);
int err;
- xoffset = (vxres - info->var.xres) - ops->var.xoffset;
- yoffset = (vyres - info->var.yres) - ops->var.yoffset;
+ xoffset = vxres - info->var.xres - ops->var.xoffset;
+ yoffset = vyres - info->var.yres - ops->var.yoffset;
+ if (yoffset < 0)
+ yoffset += vyres;
ops->var.xoffset = xoffset;
ops->var.yoffset = yoffset;
err = fb_pan_display(info, &ops->var);
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