drm: drop setting vm_file to filp

Talking to Al Viro on irc, we can see no possible reason for doing
this, the upper mmap code does it. The code has been there since
first import into drm tree I can find.

Al tracked down this as a requirement pre 2.3.51 hasn't been needed since.

Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 025abb3e3b67..65452512f5b4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -208,7 +208,6 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp,
 
         /* in case of direct mapping, always having non-cachable attribute */
         vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-        vma->vm_file = filp;
 
         vm_size = vma->vm_end - vma->vm_start;
         /*