+ dprintk(1, "vmalloc is at addr %p (%d pages)\n",
+ mem->vmalloc, pages);
+
+#if 0
+ int rc;
+ /* Kernel userptr is used also by read() method. In this case,
+ there's no need to remap, since data will be copied to user
+ */
+ if (!vb->baddr)
+ return 0;
+
+ /* FIXME: to properly support USERPTR, remap should occur.
+ The code below won't work, since mem->vma = NULL
+ */
+ /* Try to remap memory */
+ rc = remap_vmalloc_range(mem->vma, (void *)vb->baddr, 0);
+ if (rc < 0) {
+ printk(KERN_ERR "mmap: remap failed with error %d", rc);
+ return -ENOMEM;
+ }
+#endif
+
+ break;
+ case V4L2_MEMORY_OVERLAY:
+ default:
+ dprintk(1, "%s memory method OVERLAY/unknown\n", __func__);
+
+ /* Currently, doesn't support V4L2_MEMORY_OVERLAY */
+ printk(KERN_ERR "Memory method currently unsupported.\n");
+ return -EINVAL;