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authorArnd Bergmann <arnd@arndb.de>2012-09-04 15:07:35 +0200
committerArnd Bergmann <arnd@arndb.de>2012-09-04 15:07:35 +0200
commit3fbb96d275989c604b343b9e39aeea50386756e9 (patch)
tree6a066ece039f798f7d5a6b44453fc889e0e1cf8a /drivers/gpu/drm/vmwgfx
parent63487589bf96bfd3fb7d5531f2d966f29ffe397d (diff)
parent863e99a8c1ea2b0391491904297f57a0f6a1fdd6 (diff)
Merge branch 'cleanup/io-pci' into next/cleanup
The io-pci series has gained a merge to resolve a nontrivial conflict. * cleanup/io-pci: ARM: Fix ioremap() of address zero Also includes an update to Linux 3.6-rc3 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 6b0078ffa76..c50724bd30f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1688,15 +1688,19 @@ int vmw_du_page_flip(struct drm_crtc *crtc,
struct vmw_private *dev_priv = vmw_priv(crtc->dev);
struct drm_framebuffer *old_fb = crtc->fb;
struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
- struct drm_file *file_priv = event->base.file_priv;
+ struct drm_file *file_priv ;
struct vmw_fence_obj *fence = NULL;
struct drm_clip_rect clips;
int ret;
+ if (event == NULL)
+ return -EINVAL;
+
/* require ScreenObject support for page flipping */
if (!dev_priv->sou_priv)
return -ENOSYS;
+ file_priv = event->base.file_priv;
if (!vmw_kms_screen_object_flippable(dev_priv, crtc))
return -EINVAL;