dprintk(1,"init user [0x%lx+0x%lx => %d pages]\n",
data,size,dma->nr_pages);
+ dma->varea = (void *) data;
+
down_read(¤t->mm->mmap_sem);
err = get_user_pages(current,current->mm,
data & PAGE_MASK, dma->nr_pages,
vfree(dma->vmalloc);
dma->vmalloc = NULL;
+ dma->varea = NULL;
if (dma->bus_addr) {
dma->bus_addr = 0;
goto done;
}
if (buf->state == STATE_QUEUED ||
+ buf->state == STATE_PREPARED ||
buf->state == STATE_ACTIVE) {
dprintk(1,"qbuf: buffer is already queued or active.\n");
goto done;
vaddr,vma->vm_start,vma->vm_end);
if (vaddr > vma->vm_end)
return NOPAGE_SIGBUS;
- page = alloc_page(GFP_USER);
+ page = alloc_page(GFP_USER | __GFP_DMA32);
if (!page)
return NOPAGE_OOM;
clear_user_page(page_address(page), vaddr, page);