drm/i915: dereferencing an error pointer

We need to check that "ctx" is a valid pointer before dereferencing it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Dan Carpenter 2012-07-17 09:44:49 +03:00 committed by Daniel Vetter
parent b259b31206
commit be636387f8

View File

@ -497,11 +497,13 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
ctx = create_hw_context(dev, file_priv);
mutex_unlock(&dev->struct_mutex);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
args->ctx_id = ctx->id;
DRM_DEBUG_DRIVER("HW context %d created\n", args->ctx_id);
return PTR_RET(ctx);
return 0;
}
int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,