drm/i915: take struct mutex around fb unref
Need to do this in case the unref ends up doing a free. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -1606,7 +1606,9 @@ intel_user_framebuffer_create(struct drm_device *dev,
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ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj);
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if (ret) {
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mutex_lock(&dev->struct_mutex);
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drm_gem_object_unreference(obj);
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mutex_unlock(&dev->struct_mutex);
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return NULL;
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}
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