FreeBSD: There is no compelling reason to hold the lock here.
When I was lock profiling, this was high up on the list and I see no reason to do it.main
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@ -651,9 +651,7 @@ int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags,
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int is_driver_ioctl = 0;
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struct drm_file *file_priv;
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DRM_LOCK();
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retcode = devfs_get_cdevpriv((void **)&file_priv);
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DRM_UNLOCK();
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if (retcode != 0) {
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DRM_ERROR("can't find authenticator\n");
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return EINVAL;
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