-int fb_set_user_cmap(struct fb_cmap_user *cmap, struct fb_info *info)
-{
- int i, start;
- u16 __user *red, *green, *blue, *transp;
- u_int hred, hgreen, hblue, htransp = 0xffff;
-
- red = cmap->red;
- green = cmap->green;
- blue = cmap->blue;
- transp = cmap->transp;
- start = cmap->start;
-
- if (start < 0 || !info->fbops->fb_setcolreg)
- return -EINVAL;
- for (i = 0; i < cmap->len; i++, red++, blue++, green++) {
- if (get_user(hred, red) ||
- get_user(hgreen, green) ||
- get_user(hblue, blue) ||
- (transp && get_user(htransp, transp)))
- return -EFAULT;
- if (info->fbops->fb_setcolreg(start++,
- hred, hgreen, hblue, htransp,
- info))
- return 0;
- if (transp)
- transp++;
- }
- return 0;
-}