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tridentfb: 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>
This commit is contained in:
Laurent Pinchart 2011-05-25 11:34:52 +02:00
parent 0aa76b0ce1
commit 4541dbe154
1 changed files with 2 additions and 2 deletions
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4
drivers/video/tridentfb.c
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@ -987,8 +987,8 @@ static int tridentfb_pan_display(struct fb_var_screeninfo *var,
unsigned int offset;
debug("enter\n");
offset = (var->xoffset + (var->yoffset * var->xres_virtual))
* var->bits_per_pixel / 32;
offset = (var->xoffset + (var->yoffset * info->var.xres_virtual))
* info->var.bits_per_pixel / 32;
set_screen_start(par, offset);
debug("exit\n");
return 0;