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drm/i915: return -ENODEV if hw context are not supported

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Otherwise userspace has no way to figure this out.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-06-19 17:16:01 +02:00
parent 73c273eb75
commit 5fa8be65e9
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/i915_gem_context.c
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@ -480,6 +480,7 @@ int i915_switch_context(struct intel_ring_buffer *ring,
int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_context_create *args = data;
struct drm_i915_file_private *file_priv = file->driver_priv;
struct i915_hw_context *ctx;
@ -488,6 +489,9 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
if (!(dev->driver->driver_features & DRIVER_GEM))
return -ENODEV;
if (dev_priv->hw_contexts_disabled)
return -ENODEV;
ret = i915_mutex_lock_interruptible(dev);
if (ret)
return ret;