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pm3fb: 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 09:24:56 +00:00 committed by Paul Mundt
parent df2d798109
commit 1fdb518f9f
1 changed files with 2 additions and 2 deletions
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4
drivers/video/pm3fb.c
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@ -1147,9 +1147,9 @@ static int pm3fb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct pm3_par *par = info->par;
const u32 xres = (var->xres + 31) & ~31;
const u32 xres = (info->var.xres + 31) & ~31;
par->base = pm3fb_shift_bpp(var->bits_per_pixel,
par->base = pm3fb_shift_bpp(info->var.bits_per_pixel,
(var->yoffset * xres)
+ var->xoffset);
PM3_WAIT(par, 1);