diff -Naurp linux-2.6.17-rc4.orig/drivers/video/impact.c linux-2.6.17-rc4/drivers/video/impact.c
--- linux-2.6.17-rc4.orig/drivers/video/impact.c	2006-05-27 13:44:06.000000000 -0400
+++ linux-2.6.17-rc4/drivers/video/impact.c	2006-05-27 13:49:09.000000000 -0400
@@ -709,7 +709,7 @@ int impact_ioctl(struct inode *inode, st
 }
 
 int
-impact_mmap(struct fb_info *p, struct file *file, struct vm_area_struct *vma)
+impact_mmap(struct fb_info *p, struct vm_area_struct *vma)
 {
 	unsigned pool, i, n;
 	unsigned long size = vma->vm_end - vma->vm_start;
@@ -732,7 +732,6 @@ impact_mmap(struct fb_info *p, struct fi
 		if (remap_pfn_range(vma, vma->vm_start, (offset+MMIO)>>PAGE_SHIFT,
 				size, vma->vm_page_prot))
 			return -EAGAIN;
-		vma->vm_file = file;
 		PAR.mmap_flag = 1;
 		break;
 	case 0x1000000:
@@ -755,7 +754,6 @@ impact_mmap(struct fb_info *p, struct fi
 				return -EAGAIN;
 			start += PAGE_SIZE;
 		}
-		vma->vm_file = file;
 		PAR.mmap_flag = 1;
 	}
 	return 0;