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-rw-r--r--include/media/v4l2-dev.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index ba236ff35c8a..15802a067a12 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -94,6 +94,9 @@ struct video_device
/* ioctl callbacks */
const struct v4l2_ioctl_ops *ioctl_ops;
+
+ /* serialization lock */
+ struct mutex *lock;
};
/* dev to video-device */