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pm2fb: 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 09:24:55 +00:00 committed by Paul Mundt
parent c2d340a403
commit df9306de45
1 changed files with 2 additions and 2 deletions
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4
drivers/video/pm2fb.c
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@ -973,8 +973,8 @@ static int pm2fb_pan_display(struct fb_var_screeninfo *var,
{
struct pm2fb_par *p = info->par;
u32 base;
u32 depth = (var->bits_per_pixel + 7) & ~7;
u32 xres = (var->xres + 31) & ~31;
u32 depth = (info->var.bits_per_pixel + 7) & ~7;
u32 xres = (info->var.xres + 31) & ~31;
depth = (depth > 32) ? 32 : depth;
base = to3264(var->yoffset * xres + var->xoffset, depth, 1);