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authorBen Skeggs <bskeggs@redhat.com>2010-11-24 10:07:21 +1000
committerBen Skeggs <bskeggs@redhat.com>2010-12-21 17:17:23 +1000
commit587107b690f567690982fb504047e7b0a6590344 (patch)
tree12c9bedb3edb38a498c0cf47a7da93594e2ba5ff /drivers/gpu/drm/nouveau/nouveau_notifier.c
parent99805566d93d69b7daf2373aba9fae52a62396f4 (diff)
drm/nvc0: reject the notifier_alloc ioctl
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_notifier.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_notifier.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_notifier.c b/drivers/gpu/drm/nouveau/nouveau_notifier.c
index a050b7b6978..fe29d604b82 100644
--- a/drivers/gpu/drm/nouveau/nouveau_notifier.c
+++ b/drivers/gpu/drm/nouveau/nouveau_notifier.c
@@ -164,10 +164,15 @@ int
nouveau_ioctl_notifier_alloc(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
struct drm_nouveau_notifierobj_alloc *na = data;
struct nouveau_channel *chan;
int ret;
+ /* completely unnecessary for these chipsets... */
+ if (unlikely(dev_priv->card_type >= NV_C0))
+ return -EINVAL;
+
chan = nouveau_channel_get(dev, file_priv, na->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);