From ccf7c3abe80b4925027673a0003be4c0fcad2797 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 17 Apr 2013 08:22:16 -0300 Subject: [PATCH] upstream: [media] videobuf-dma-contig: use vm_iomap_memory() vm_iomap_memory() provides a better end user interface than remap_pfn_range(), as it does the needed tests before doing mmap. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/videobuf-dma-contig.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/media/v4l2-core/videobuf-dma-contig.c b/drivers/media/v4l2-core/videobuf-dma-contig.c index 8204c88..65411adc 100644 --- a/drivers/media/v4l2-core/videobuf-dma-contig.c +++ b/drivers/media/v4l2-core/videobuf-dma-contig.c @@ -305,14 +305,9 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q, goto error; /* Try to remap memory */ - size = vma->vm_end - vma->vm_start; - size = (size < mem->size) ? size : mem->size; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - retval = remap_pfn_range(vma, vma->vm_start, - mem->dma_handle >> PAGE_SHIFT, - size, vma->vm_page_prot); + retval = vm_iomap_memory(vma, vma->vm_start, size); if (retval) { dev_err(q->dev, "mmap: remap failed with error %d. ", retval); -- 2.7.4