X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fmedia%2Fvideo%2Fvideo-buf.c;h=459786ff459a97df7bd3c56e3140a29ac0282d96;hb=ddc285c7632b64fb1ac3ec8f25bcc8abd4a1f727;hp=acc5ea936687a02ed7b52b049b2c894a828daa74;hpb=4e8f10b7ccf1c3c53a818a157962074a7340732e;p=powerpc.git

diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c
index acc5ea9366..459786ff45 100644
--- a/drivers/media/video/video-buf.c
+++ b/drivers/media/video/video-buf.c
@@ -148,6 +148,8 @@ int videobuf_dma_init_user(struct videobuf_dmabuf *dma, int direction,
 	dprintk(1,"init user [0x%lx+0x%lx => %d pages]\n",
 		data,size,dma->nr_pages);
 
+	dma->varea = (void *) data;
+
 	down_read(&current->mm->mmap_sem);
 	err = get_user_pages(current,current->mm,
 			     data & PAGE_MASK, dma->nr_pages,
@@ -285,6 +287,7 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma)
 
 	vfree(dma->vmalloc);
 	dma->vmalloc = NULL;
+	dma->varea = NULL;
 
 	if (dma->bus_addr) {
 		dma->bus_addr = 0;
@@ -365,7 +368,12 @@ videobuf_iolock(struct videobuf_queue* q, struct videobuf_buffer *vb,
 		if (NULL == fbuf)
 			return -EINVAL;
 		/* FIXME: need sanity checks for vb->boff */
-		bus   = (dma_addr_t)fbuf->base + vb->boff;
+		/*
+		 * Using a double cast to avoid compiler warnings when
+		 * building for PAE. Compiler doesn't like direct casting
+		 * of a 32 bit ptr to 64 bit integer.
+		 */
+		bus   = (dma_addr_t)(unsigned long)fbuf->base + vb->boff;
 		pages = PAGE_ALIGN(vb->size) >> PAGE_SHIFT;
 		err = videobuf_dma_init_overlay(&vb->dma,PCI_DMA_FROMDEVICE,
 						bus, pages);
@@ -695,6 +703,7 @@ videobuf_qbuf(struct videobuf_queue *q,
 		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;
@@ -1224,7 +1233,7 @@ videobuf_vm_nopage(struct vm_area_struct *vma, unsigned long vaddr,
 		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);