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tridentfb: use display information in info not in var for panning

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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>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Laurent Pinchart 2011-06-14 09:25:02 +00:00 committed by Paul Mundt
parent 635e9620e8
commit e4c735af00
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;