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pm2fb: 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 4935ebf43c
commit 3bb8c31dea
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);