From 6a5d416b3793401d8bad6e3d398847eeb1158ba0 Mon Sep 17 00:00:00 2001
From: Paul Elder <paul.elder@ideasonboard.com>
Date: Tue, 23 Jun 2020 14:33:39 +0900
Subject: v4l2: v4l2_camera_proxy: noop if streamon when stream is already on

If VIDIOC_STREMAON is called when the stream is already on, do a noop.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/v4l2/v4l2_camera_proxy.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/v4l2')

diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 08fd3fdc..225ce42b 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -623,6 +623,9 @@ int V4L2CameraProxy::vidioc_streamon(V4L2CameraFile *file, int *arg)
 	if (!hasOwnership(file))
 		return -EBUSY;
 
+	if (vcam_->isRunning())
+		return 0;
+
 	currentBuf_ = 0;
 
 	return vcam_->streamOn();
-- 
cgit v1.2.1