From c7ea990f87f9fbe6a7183c03f7993b3360454834 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sat, 15 Dec 2007 14:04:42 +0100 Subject: [PATCH] ieee1394: small cleanup after "nopage" Signed-off-by: Stefan Richter --- drivers/ieee1394/dma.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/drivers/ieee1394/dma.c b/drivers/ieee1394/dma.c index ec024b5d5e5e..73685e7dc7e4 100644 --- a/drivers/ieee1394/dma.c +++ b/drivers/ieee1394/dma.c @@ -231,28 +231,20 @@ void dma_region_sync_for_device(struct dma_region *dma, unsigned long offset, #ifdef CONFIG_MMU -/* fault() handler for mmap access */ - static int dma_region_pagefault(struct vm_area_struct *vma, - struct vm_fault *vmf) + struct vm_fault *vmf) { - unsigned long kernel_virt_addr; - struct dma_region *dma = (struct dma_region *)vma->vm_private_data; if (!dma->kvirt) - goto error; + return VM_FAULT_SIGBUS; if (vmf->pgoff >= dma->n_pages) - goto error; + return VM_FAULT_SIGBUS; - kernel_virt_addr = (unsigned long)dma->kvirt + (vmf->pgoff << PAGE_SHIFT); - vmf->page = vmalloc_to_page((void *)kernel_virt_addr); + vmf->page = vmalloc_to_page(dma->kvirt + (vmf->pgoff << PAGE_SHIFT)); get_page(vmf->page); return 0; - - error: - return VM_FAULT_SIGBUS; } static struct vm_operations_struct dma_region_vm_ops = { -- 2.20.1