s3c-fb: use display information in info not in var for panning

We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Laurent Pinchart 2011-06-14 09:24:57 +00:00 committed by Paul Mundt
parent aa7984cf51
commit 3362903cad

View File

@ -884,7 +884,7 @@ static int s3c_fb_pan_display(struct fb_var_screeninfo *var,
}
}
/* Offset in bytes to the end of the displayed area */
end_boff = start_boff + var->yres * info->fix.line_length;
end_boff = start_boff + info->var.yres * info->fix.line_length;
/* Temporarily turn off per-vsync update from shadow registers until
* both start and end addresses are updated to prevent corruption */