[PATCH] fbdev: Sanitize ->fb_mmap prototype

No need for a file argument.  If we'd really need it it's in vma->vm_file
already.  gbefb and sgivwfb used to set vma->vm_file to the file argument, but
the kernel alrady did that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c
index 750cebb..b058273 100644
--- a/drivers/video/acornfb.c
+++ b/drivers/video/acornfb.c
@@ -883,7 +883,7 @@
  * Note that we are entered with the kernel locked.
  */
 static int
-acornfb_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma)
+acornfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	unsigned long off, start;
 	u32 len;