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[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 <mchehab@redhat.com>
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1 changed files with 1 additions and 6 deletions
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@ -305,14 +305,9 @@ static int __videobuf_mmap_mapper(struct videobuf_queue *q,
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goto error;
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/* Try to remap memory */
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size = vma->vm_end - vma->vm_start;
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size = (size < mem->size) ? size : mem->size;
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vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
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retval = remap_pfn_range(vma, vma->vm_start,
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mem->dma_handle >> PAGE_SHIFT,
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size, vma->vm_page_prot);
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retval = vm_iomap_memory(vma, vma->vm_start, size);
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if (retval) {
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dev_err(q->dev, "mmap: remap failed with error %d. ",
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retval);
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