ks108_set_yaddr(par, chipindex, upper/8);
 
        linesize = par->info->var.xres/8;
-       src = par->info->screen_base + (left/8) + (upper * linesize);
+       src = (unsigned char __force *) par->info->screen_base + (left/8) +
+               (upper * linesize);
        ks108_set_xaddr(par, chipindex, left);
 
        bitmask=1;
        if (count) {
                char *base_addr;
 
-               base_addr = info->screen_base;
+               base_addr = (char __force *)info->screen_base;
                count -= copy_from_user(base_addr + p, buf, count);
                *ppos += count;
                err = -EFAULT;
 
        if (info) {
                unregister_framebuffer(info);
-               vfree(info->screen_base);
+               vfree((void __force *)info->screen_base);
                framebuffer_release(info);
        }
        return 0;