From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat, 15 Dec 2007 13:04:42 +0000 (+0100)
Subject: ieee1394: small cleanup after "nopage"
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=c7ea990f87f9fbe6a7183c03f7993b3360454834;p=openwrt%2Fstaging%2Fblogic.git

ieee1394: small cleanup after "nopage"

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---

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 = {