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imsttfb: 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 7b116e5492
commit 09a9168d4c
1 changed files with 1 additions and 1 deletions
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2
drivers/video/imsttfb.c
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@ -749,7 +749,7 @@ set_offset (struct fb_var_screeninfo *var, struct fb_info *info)
{
struct imstt_par *par = info->par;
__u32 off = var->yoffset * (info->fix.line_length >> 3)
+ ((var->xoffset * (var->bits_per_pixel >> 3)) >> 3);
+ ((var->xoffset * (info->var.bits_per_pixel >> 3)) >> 3);
write_reg_le32(par->dc_regs, SSR, off);
}