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imsttfb: 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>
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);
}